#animalbehaviour — Public Fediverse posts

More curious fur seals are getting trapped in discarded fishing gear
By Toby Hemmings and Alasdair McDonald

Data from the wildlife rescue group ORRCA shows an increase in the number of fur seal entanglements as they seek out fishing lines in attempts to find an easy meal.

https://www.abc.net.au/news/2026-05-15/entangled-seals-fishing-gear/106674776

#WaterPollution #MarineBiology #AnimalBehaviour #RecreationalFishing #TobyHemmings #AlasdairMcDonald

The sleep paradox: why do humans sleep so little when we need it so much?

The Sleepless Ape: The Story of Sleep in Human Evolution David R. Samson Princeton Univ. Press (2026) Sleep…
#NewsBeep #News #Science #animalbehaviour #anthropology #Brain #Evolution #GB #Humanbehaviour #HumanitiesandSocialSciences #multidisciplinary #UK #UnitedKingdom
https://www.newsbeep.com/uk/581768/

https://www.europesays.com/uk/957189/ The sleep paradox: why do humans sleep so little when we need it so much? #AnimalBehaviour #Anthropology #brain #evolution #HumanBehaviour #HumanitiesAndSocialSciences #multidisciplinary #Science #UK #UnitedKingdom

Don’t reach for the bug spray: crickets stroke a sore antenna, as cues suggest insects feel pain https://www.theguardian.com/science/2026/may/13/insects-feel-pain-research #AnimalBehaviour #Insects #Environment #Animals #Biology #AustraliaNews #Wildlife #Science

Japan confirms first fatal bear attack this year with two more suspected

Japanese authorities say a 55-year-old woman found dead last month was killed by a bear. It is the first confirmed fatal bear attack for 2026 following a record 13 deaths last year.

https://www.abc.net.au/news/2026-05-08/japan-confirms-fatal-bear-attack/106660514

#AnimalAttacks #Animals #AnimalBehaviour

This happened to me in 2024, my lecturer's response was: "It should," and he went on to explain 🥲.

#meme #animalbehaviour #zoology #biology #dogs #fediverse

10/
Conclusion: The Human-Animal Web

• Humans are described as one thread in a vast, continuous living web.

• Domestic pets, such as dogs and cats, foster empathy in children that bridges the gap between our homes and wild animals like elephants.

• The findings demand a reconsideration of our relationship with the conscious, feeling beings in the natural world.

https://youtu.be/y14Cd-mwass

#animals
#elephants
#AnimalBehaviour
#AnimalRights
#AnimalSentience
#AnimalEthics

6/
Chemical evidence of shared traits includes:
◦ Crayfish: Display clinical anxiety and elevated serotonin when subjected to shocks.
◦ Honeybees: Become pessimistic after simulated attacks.
◦ Tiny Worms: Use oxytocin-like chemicals to seek mates despite having only 302 nerve cells.
◦ Dogs: Can suffer from obsessive-compulsive disorder.
Case Study: The Elephant Mind

https://youtu.be/y14Cd-mwass

#animals
#AnimalBehaviour
#AnimalRights
#ethology
#video

4/
By recognizing these shared emotions, we take a giant stride toward understanding the living web we inhabit. So, let's dive into the animal mind and see the world through a completely new light.

The Paradigm Shift: From "It" to "Who"

• Science is moving away from viewing animals as biological "its"—mechanical beings driven solely by instinct—to recognizing them as conscious "whos".

https://youtu.be/y14Cd-mwass

#animals
#AnimalBehaviour
#AnimalRights
#AnimalEthics
#ethology
#video

3/
This isn’t just sentiment—it’s biological truth. Modern neurology reveals that we inherited our nervous systems from the same evolutionary tree as the creatures around us. From crayfish experiencing clinical anxiety to elephants making strategic alliances, we are finding that the biological trails of human emotion are built upon ancient trails shared by all living things.

https://youtu.be/y14Cd-mwass

#animals
#AnimalBehaviour
#AnimalRights
#AnimalEthics
#ethology
#elephants
#video

2/
This shift becomes clear when you look at the life of an elephant. Consider Echo, a matriarch who slowed her entire family's pace for three days just to allow her crippled calf to survive. This wasn't a mechanical reaction; it was a choice fueled by profound empathy and wisdom.

https://youtu.be/y14Cd-mwass

#animals
#AnimalBehaviour
#AnimalRights
#AnimalEthics
#ethology
#elephants
#video

FROM 'IT TO 'WHO'

For the longest time, science viewed animals as biological "its"—living machines driven entirely by automated instinct. But today, field research is providing undeniable evidence that demands a massive paradigm shift: looking at them not as objects, but as conscious "whos".

https://youtu.be/y14Cd-mwass

#animals
#AnimalBehaviour
#AnimalRights
#AnimalEthics
#ethology
#video

Decoding Animal Behaviour:
The Four Pillars of Ethology

https://youtu.be/SXvcwfYRan8

#ethology
#AnimalBehaviour
#animals
#infographic
#Tinbergen

A burrowing owl ruffles its feathers in Davie, Florida, US. These owls are known to scatter animal dung around their burrow entrances to attract dung beetles, a favourite snack.

Photograph: Ronen Tivony/NurPhoto/Shutterstock

#photography
#birds
#owl
#AnimalBehaviour

From the upcoming Animal Behaviour Illustrated (Primates):

#photography
#SnowMonkeys
#Japan
#grooming
#AnimalBehaviour
#ethology

📚Tristram Wyatt’s “#AnimalBehaviour: A Very Short Introduction” is a useful reminder for #NaturalisticNeuroscience: Behavior is not just output, but evolved action in ecological and social context. This is exactly the conceptual bridge we need between #Neuroscience/ #CompNeuro & realworld #behavior.

📚Tristram Wyatt’s “#AnimalBehaviour: A Very Short Introduction” is a useful reminder for #NaturalisticNeuroscience: Behavior is not just output, but evolved action in ecological and social context. This is exactly the conceptual bridge we need between #Neuroscience/ #CompNeuro & realworld #behavior.

📚Tristram Wyatt’s “#AnimalBehaviour: A Very Short Introduction” is a useful reminder for #NaturalisticNeuroscience: Behavior is not just output, but evolved action in ecological and social context. This is exactly the conceptual bridge we need between #Neuroscience/ #CompNeuro & realworld #behavior.

📚Tristram Wyatt’s “#AnimalBehaviour: A Very Short Introduction” is a useful reminder for #NaturalisticNeuroscience: Behavior is not just output, but evolved action in ecological and social context. This is exactly the conceptual bridge we need between #Neuroscience/ #CompNeuro & realworld #behavior.

Cephalopods deserve higher welfare standards in research

You have full access to this article via your institution. Cephalopods such as octopuses are known to feel…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Science #Animalbehaviour #HumanitiesandSocialSciences #multidisciplinary #Neuroscience
https://www.newsbeep.com/us/615297/

Older than the dinosaurs: scientists finally unlock secret of the mayfly’s dance https://www.theguardian.com/environment/2026/apr/29/mayflies-dance-vertical-pattern-experts-aoe #Insects #Environment #Conservation #EndangeredSpecies #Wildlife #UkNews #Animals #WorldNews #AnimalBehaviour #Biology #Science

🐜🗣️ It's today!

Join us in just a few hours for our seminar "What we learned about the world from studying collective behavior: algorithms, replicators, and strong inference" with Dr. Anna Dornhaus on YouTube! 🎥🌍

Discover the hidden algorithms behind collective behavior in social insect societies. See you soon!

📅 Time: Today, 2pm GMT
📺 Link: https://www.youtube.com/watch?v=oioL9fRzcI0

#AnimalBehaviour #CollectiveBehaviour #OnlineSeminar

Warsaw issues kill-on-sight order against rampaging boars

Some residents are now furious that the local government has decided to hire hunters to kill the boars.…
#Poland #Polska #PL #Europe #Europa #EU #Warsaw #Animalbehaviour #Boars #Standard #SundayTelegraphNews #Worldnews
https://www.europesays.com/poland/3665/

Cross-species implementation of an innate courtship behavior by manipulation of the sex-determinant gene https://www.science.org/doi/10.1126/science.adp5831

One gene is enough to start gift giving behavior! First transfer of behavior from one species to another.

"If I didn't buy you sweets, my dear, it's because I lack the gene."

#evolutionarybiology #biology #animalbehaviour

Bonobos enjoy pretend tea parties and chimps think rationally: why apes are more like us than we ever thought https://www.theguardian.com/environment/2026/apr/23/apes-behaviour-bonobo-chimpanzee-humans-science-aoe #EndangeredSpecies #Environment #Animals #Conservation #Wildlife #WorldNews #Science #Primatology #AnimalBehaviour #Biology

📣 SEMINAR SERIES 2026 – 1 week to go!📣

Join us Tuesday 28 April at 2pm GMT for the first seminar of 2026!
🐜🐝 Dr. Anna Dornhaus (Uni of Arizona) on “What we learned about the world from studying collective behavior: algorithms, replicators, and strong inference”

📍 Live on YouTube → https://www.youtube.com/watch?v=oioL9fRzcI0

✅ Free & open to all!

#AnimalBehaviour #OnlineSeminar #CollectiveBehaviour #social_insects

Desmond Morris obituary https://www.theguardian.com/culture/2026/apr/20/desmond-morris-obituary #DesmondMorris #Culture #Television #AnimalBehaviour #Science #Animals #Books #Zoology #Zoos #Biology #ScienceAndNatureBooks #Painting #Malta #Catholicism

Desmond Morris obituary https://www.theguardian.com/culture/2026/apr/20/desmond-morris-obituary #DesmondMorris #Culture #Television #AnimalBehaviour #Science #Animals #Books #Zoology #Zoos #Biology #ScienceAndNatureBooks #Painting #Malta #Catholicism

WOAAAHHHH!!! 😍🐋🥰

"Not only do sperm whales have a form of 'alphabet' and form vowels within their vocalizations but the structure of these vowels behaves in the same way as human speech, the new study has found".

https://www.theguardian.com/environment/2026/apr/15/sperm-whales-alphabet-vocalizations-similar-humans

#spermwhale #whales #language #animalbehaviour

@TheConversationUS It referred to as 'modernization' and 'progress' #animalbehaviour #humanbehaviour

Wild chimpanzees recorded waging ‘civil war’ with coordinated attacks between two groups https://www.theguardian.com/environment/2026/apr/09/civil-war-chimpanzee-group-closer-to-human-condition-aoe #Primatology #GlobalDevelopment #Environment #Uganda #Animals #Africa #Science #EndangeredSpecies #Wildlife #WorldNews #AnimalBehaviour #Biology

Sex at arm’s length? Male octopuses use specialised arm to mate, scientists find https://www.theguardian.com/environment/2026/apr/02/sex-octopus-specialist-arm-mating-science #MarineLife #Science #Environment #Reproduction #Biology #Research #AnimalBehaviour #HarvardUniversity #Education #HigherEducation #Wildlife

I wonder how long the effect lasts? Birds are quick learners. The paper (linked) does not go into great detail (other than noting days or weeks with some caveats) and the birds lean from others. But all the same interesting.

I just don't eat chips if they are around :-)

https://www.theguardian.com/environment/2026/apr/01/specieswatch-eyes-on-takeaway-boxes-stop-gulls-stealing-chips

https://onlinelibrary.wiley.com/doi/10.1002/ece3.73202

#Gulls #Birds #AnimalBehaviour #Chips #Seaside

Bond between dogs and humans dates back more than 15,000 years, study finds https://www.theguardian.com/science/2026/mar/25/bond-dogs-humans-dates-back-15000-years-study-finds #AnimalBehaviour #Science #Dogs #Animals #WorldNews #NaturalHistoryMuseum #UkNews

Crossbreed dogs show more behavioural problems than pure breeds, study suggests https://www.theguardian.com/lifeandstyle/2026/mar/19/crossbreed-dogs-cockapoo-cavapoo-labradoodle-behavioural-problems-study-research #Dogs #AnimalBehaviour #Animals #Science #UkNews #Pets

Tapanuli Orangutan Faces Extinction From Forest Protection Rollback

The world’s rarest great ape, the Tapanuli orangutan, is facing a population collapse after a devastating cyclone and a proposed zoning overhaul that threatens to strip protections from their last remaining habitat. Experts warn that weakening environmental laws and oversight now would be the “nail in the coffin” for this beautiful and intelligent species.

#News: After the deadly floods in #Sumatra, Tapanuli #orangutans face a bleak future. Now their legal protections are being stripped back to make way for more #mining. Fight back when you shop! 🧐🛍️ #BoycottPalmOil 🌴🚫 #Boycott4Wildlife @palmoildetect https://wp.me/pcFhgU-iSk

Learn more: Jong, H. N., & Muazam, A. R. (2025, December 18). Tapanuli orangutan, devastated by cyclone, now faces habitat loss under zoning plans. Mongabay.  https://news.mongabay.com/2025/12/tapanuli-orangutan-devastated-by-cyclone-now-faces-habitat-loss-under-zoning-plans/

https://youtu.be/Mf0mABb4AKQ

Reeling from a catastrophic cyclone that may have killed or displaced dozens of Tapanuli orangutans, the critically endangered species now faces a new threat: a proposed zoning overhaul in Indonesia’s North Sumatra province. Local authorities have called for scaling back the Batang Toru “provincial strategic area” by nearly a third, a move that would significantly weaken legal protections and environmental scrutiny for mining and plantation projects. If approved, approximately 39,000 hectares—nearly a third of the orangutan’s forest range—would lose the safeguards that currently prioritise ecological function and landscape-scale assessment.

The timing of this proposal is especially alarming. A recent tropical storm unleashed torrential rains and landslides that severely damaged at least 3,964 hectares of previously intact forest, potentially impacting up to 54 individuals from a total population of just 800. Scientists warn that this extreme weather event, combined with the loss of forest cover, could push the Tapanuli orangutan toward population collapse. Removing strategic protections would also facilitate the expansion of extractive industries, including a nearby gold mine that has already faced intense scrutiny for its potential impact on the species.

Provincial officials suggested the downscaling was due to a lack of capacity and budget to manage such a vast area, even proposing that the central government take over as a “national strategic area.” However, conservation groups like Mighty Earth argue that opening the door to further extractive industries in the wake of a natural disaster is an “insane idea.” They are calling for emergency protections, a halt to habitat-damaging development, and the restoration of critical forest corridors to prevent the Tapanuli orangutan from becoming the first great ape species to go extinct in modern history.

While the central government has moved to suspend some industrial operations and review logging permits in response to the floods, the future of the Batang Toru ecosystem remains uncertain. Conservationists stress that this is a critical opportunity for the government to fulfill its environmental promises rather than allowing administrative or commercial interests to seal the fate of a species on the brink.

Tapanuli Orangutan Faces Extinction From Forest Protection Rollback

Deforestation Devastates Tesso Nilo National Park’s Endangered Creatures

Research: AI Helps Unlock the Curious Secrets of Orangutan Chatter

August 19th is #WorldOrangutanDay

Apes Enjoy Joking and Teasing Each Other

Primates are facing an impending extinction crisis – but we know very little about what will actually protect them

Something went wrong. Please refresh the page and/or try again.

Learn more: Jong, H. N., & Muazam, A. R. (2025, December 18). Tapanuli orangutan, devastated by cyclone, now faces habitat loss under zoning plans. Mongabay.  https://news.mongabay.com/2025/12/tapanuli-orangutan-devastated-by-cyclone-now-faces-habitat-loss-under-zoning-plans/

ENDS

Learn about other animals endangered by palm oil and other agriculture

Marsupials thought extinct for 6,000 years found in West Papua

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

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2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Marsupials thought extinct for 6,000 years found in West Papua

In an astonishing discovery, two marsupial species believed to be extinct for 6,000 years have been rediscovered alive and well in the remote rainforests of West Papua. The pygmy long-fingered possum and the ring-tailed glider were located with the crucial assistance of local indigenous Vogelkop clans. However, their survival remains precarious as their habitats are increasingly threatened by logging and the expansion of the palm oil colonialism in West Papua. Laws and native title to protect this region is essential for indigenous land defenders. We musn’t let them disappear again #BoycottPalmOil #Boycott4Wildlife

Two #extinct #marsupials in #WestPapua found alive! The #marsupials highlight the need to protect #Papuan forests or they are gone for good! Resist for them and #BoycottPalmOil #Boycott4Wildlife when you shop 🌴🙊🔥☠️🚫 @palmoildetect #Boycott4Wildlife https://wp.me/pcFhgU-iOH

Two #possums thought extinct for 6000 years are alive in #WestPapua! The pygmy #possum and sacred ring-tailed #glider are #nature’s battlers who deserve a break from #palmoil ecocide. Stand with #indigenous defenders against palm oil #colonialism! 🌴🚫 @palmoildetect #BoycottPalmOil https://wp.me/pcFhgU-iOH

https://youtu.be/T1uWC5ZE4KI

Two extraordinarily rare marsupials, entirely believed to have been extinct for over six thousand years, have been discovered alive in the remote, Vogelkop mountain forests of the Bird’s Head peninsula in West Papua. This remarkable rediscovery of the pygmy long-fingered possum and the ring-tailed glider was confirmed by Australian scientist Professor Tim Flannery, alongside a team of local indigenous experts and university researchers.

“More important than finding a living thylacine in Tasmania.”

Scott Hucknull from Central Queensland University describes the magnitude of the discovery.

These species are rare examples of “Lazarus taxa”. Animals who disappear from the fossil record only to be found alive centuries later. Flannery noted that the likelihood of finding even one lost mammal was almost zero, let alone two.

“It’s unprecedented and groundbreaking, really, to find two Lazarus taxa,” Flannery says. “We’ve been able to finalise two pieces of work that are incredibly important from a biological and a conservation perspective, documenting the existence of rare marsupials in an area under threat. It’s sort of a crowning glory in my career as a biologist.”

The first of the resurrected species is the pygmy long-fingered possum, Dactylonax kambuayai. This tiny, striped marsupial possesses an extraordinary evolutionary trait: an elongated fourth finger on each hand that is double the length of other digits. Flannery explains that they use this finger to extract grubs from timber.

“They’ve got a whole lot of specialisations in their ear region as well, which seem to be related to detection of low-frequency sound. So presumably they’re listening for wood-boring beetle larvae, and they then rip open the rotting wood and use that finger to fish out the grub,” Flannery says.

The second species, the ring-tailed glider (Tous ayamaruensis), features unfurred ears and a strong, prehensile tail used for gripping branches. Flannery calls it “one of the most photogenic animals, most beautiful marsupials you’ll ever see.”

Crucially, the rediscovery of these elusive creatures was entirely dependent on the profound ecological knowledge of the local Tambrauw and Maybrat clans. These indigenous communities view the ring-tailed glider as deeply sacred, believing them to be manifestations of their ancestors’ spirits, and actively protect them from hunting. Rika Korain, a Maybrat woman and co-author of the research, emphasised that identifying the species relied entirely on traditional owners. “This connection has been essential,” she says.

“I’m very proud that Papuan researchers contributed to these landmark discoveries, and want to thank the people of the Misool, Maybrat and Tambrouw regions who supported us in the field,”

Dr Aksamina Yohanita of the University of Papua said.

“The Vogelkop is an ancient piece of the Australian continent that has become incorporated into the island of New Guinea. Its forests may shelter yet more hidden relics of a past Australia,”

Tim Flannery

To protect the remaining populations from the illegal wildlife trade, researchers are keeping their exact locations highly classified. Flannery delivered a stark warning to potential poachers regarding the animals’ survival in captivity: “They would be incredibly difficult to keep in captivity. because their diet is so highly specialised. Advanced warning for anyone who’s thinking of keeping one as a pet: it won’t live long,” he says.

While their rediscovery is a triumph, their future is highly uncertain. The proximity of power-hungry corporates intent on razing the rainforest for palm oil and timber casts a dark shadow over the region.

David Lindenmayer, an ecologist at the Australian National University, who was not involved in the study said “I am also hugely concerned about the extent of logging and land clearing happening in New Guinea,” he says. “It also makes me wonder what might have been lost in Australia as a result of all of the land clearing that has taken place here.”

The findings underline strong calls from scientists, environmentalists and indigenous rights advocates for Native Title legal land rights and indigenous-led protections of West Papua and its imperilled Vogelkop rainforest where these delightful marsupials are found.

Further information

Lam, L. (2026, March 6). Tiny possum and glider thought extinct for 6,000 years found in remote West Papua. BBC News. https://www.bbc.co.uk/news/articles/cwyg6p8g6yjo

Morton, A. (2026, March 6). Marsupials previously thought extinct for millennia discovered in New Guinea. The Guardian. https://www.theguardian.com/environment/2026/mar/05/marsupials-discovered-new-guinea

Woodford, J. (2026, March 5). Two marsupials believed extinct for 6000 years found alive. New Scientist. https://www.newscientist.com/article/2518082-two-marsupials-believed-extinct-for-6000-years-found-alive/

ENDS

Learn about other animals endangered by palm oil and other agriculture

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Marsupials thought extinct for 6,000 years found in West Papua

In an astonishing discovery, two marsupial species believed to be extinct for 6,000 years have been rediscovered alive and well in the remote rainforests of West Papua. The pygmy long-fingered possum and the ring-tailed glider were located with the crucial assistance of local indigenous Vogelkop clans. However, their survival remains precarious as their habitats are increasingly threatened by logging and the expansion of the palm oil colonialism in West Papua. Laws and native title to protect this region is essential for indigenous land defenders. We musn’t let them disappear again #BoycottPalmOil #Boycott4Wildlife

Two #extinct #marsupials in #WestPapua found alive! The #marsupials highlight the need to protect #Papuan forests or they are gone for good! Resist for them and #BoycottPalmOil #Boycott4Wildlife when you shop 🌴🙊🔥☠️🚫 @palmoildetect #Boycott4Wildlife https://wp.me/pcFhgU-iOH

Two #possums thought extinct for 6000 years are alive in #WestPapua! The pygmy #possum and sacred ring-tailed #glider deserve a break from #palmoil #ecocide. Stand with #indigenous defenders against #colonialism! 🌴🚫 @palmoildetect #BoycottPalmOil https://wp.me/pcFhgU-iOH

https://youtu.be/T1uWC5ZE4KI

Two extraordinarily rare marsupials, entirely believed to have been extinct for over six thousand years, have been discovered alive in the remote, Vogelkop mountain forests of the Bird’s Head peninsula in West Papua. This remarkable rediscovery of the pygmy long-fingered possum and the ring-tailed glider was confirmed by Australian scientist Professor Tim Flannery, alongside a team of local indigenous experts and university researchers.

“More important than finding a living thylacine in Tasmania.”

Scott Hucknull from Central Queensland University describes the magnitude of the discovery.

These species are rare examples of “Lazarus taxa”. Animals who disappear from the fossil record only to be found alive centuries later. Flannery noted that the likelihood of finding even one lost mammal was almost zero, let alone two.

“It’s unprecedented and groundbreaking, really, to find two Lazarus taxa,” Flannery says. “We’ve been able to finalise two pieces of work that are incredibly important from a biological and a conservation perspective, documenting the existence of rare marsupials in an area under threat. It’s sort of a crowning glory in my career as a biologist.”

The first of the resurrected species is the pygmy long-fingered possum, Dactylonax kambuayai. This tiny, striped marsupial possesses an extraordinary evolutionary trait: an elongated fourth finger on each hand that is double the length of other digits. Flannery explains that they use this finger to extract grubs from timber.

“They’ve got a whole lot of specialisations in their ear region as well, which seem to be related to detection of low-frequency sound. So presumably they’re listening for wood-boring beetle larvae, and they then rip open the rotting wood and use that finger to fish out the grub,” Flannery says.

The second species, the ring-tailed glider (Tous ayamaruensis), features unfurred ears and a strong, prehensile tail used for gripping branches. Flannery calls it “one of the most photogenic animals, most beautiful marsupials you’ll ever see.”

Crucially, the rediscovery of these elusive creatures was entirely dependent on the profound ecological knowledge of the local Tambrauw and Maybrat clans. These indigenous communities view the ring-tailed glider as deeply sacred, believing them to be manifestations of their ancestors’ spirits, and actively protect them from hunting. Rika Korain, a Maybrat woman and co-author of the research, emphasised that identifying the species relied entirely on traditional owners. “This connection has been essential,” she says.

“I’m very proud that Papuan researchers contributed to these landmark discoveries, and want to thank the people of the Misool, Maybrat and Tambrouw regions who supported us in the field,”

Dr Aksamina Yohanita of the University of Papua said.

“The Vogelkop is an ancient piece of the Australian continent that has become incorporated into the island of New Guinea. Its forests may shelter yet more hidden relics of a past Australia,”

Tim Flannery

To protect the remaining populations from the illegal wildlife trade, researchers are keeping their exact locations highly classified. Flannery delivered a stark warning to potential poachers regarding the animals’ survival in captivity: “They would be incredibly difficult to keep in captivity. because their diet is so highly specialised. Advanced warning for anyone who’s thinking of keeping one as a pet: it won’t live long,” he says.

While their rediscovery is a triumph, their future is highly uncertain. The proximity of power-hungry corporates intent on razing the rainforest for palm oil and timber casts a dark shadow over the region.

David Lindenmayer, an ecologist at the Australian National University, who was not involved in the study said “I am also hugely concerned about the extent of logging and land clearing happening in New Guinea,” he says. “It also makes me wonder what might have been lost in Australia as a result of all of the land clearing that has taken place here.”

The findings underline strong calls from scientists, environmentalists and indigenous rights advocates for Native Title legal land rights and indigenous-led protections of West Papua and its imperilled Vogelkop rainforest where these delightful marsupials are found.

Further information

Lam, L. (2026, March 6). Tiny possum and glider thought extinct for 6,000 years found in remote West Papua. BBC News. https://www.bbc.co.uk/news/articles/cwyg6p8g6yjo

Morton, A. (2026, March 6). Marsupials previously thought extinct for millennia discovered in New Guinea. The Guardian. https://www.theguardian.com/environment/2026/mar/05/marsupials-discovered-new-guinea

Woodford, J. (2026, March 5). Two marsupials believed extinct for 6000 years found alive. New Scientist. https://www.newscientist.com/article/2518082-two-marsupials-believed-extinct-for-6000-years-found-alive/

ENDS

Learn about other animals endangered by palm oil and other agriculture

Marsupials thought extinct for 6,000 years found in West Papua

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

✓ Subscribed

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Marsupials thought extinct for 6,000 years found in West Papua

In an astonishing discovery, two marsupial species believed to be extinct for 6,000 years have been rediscovered alive and well in the remote rainforests of West Papua. The pygmy long-fingered possum and the ring-tailed glider were located with the crucial assistance of local indigenous Vogelkop clans. However, their survival remains precarious as their habitats are increasingly threatened by logging and the expansion of the palm oil colonialism in West Papua. Laws and native title to protect this region is essential for indigenous land defenders. We musn’t let them disappear again #BoycottPalmOil #Boycott4Wildlife

Two #extinct #marsupials in #WestPapua found alive! The #marsupials highlight the need to protect #Papuan forests or they are gone for good! Resist for them and #BoycottPalmOil #Boycott4Wildlife when you shop 🌴🙊🔥☠️🚫 @palmoildetect #Boycott4Wildlife https://wp.me/pcFhgU-iOH

Two #possums thought extinct for 6000 years are alive in #WestPapua! The pygmy #possum and sacred ring-tailed #glider are #nature’s battlers who deserve a break from #palmoil ecocide. Stand with #indigenous defenders against palm oil #colonialism! 🌴🚫 @palmoildetect #BoycottPalmOil https://wp.me/pcFhgU-iOH

https://youtu.be/T1uWC5ZE4KI

Two extraordinarily rare marsupials, entirely believed to have been extinct for over six thousand years, have been discovered alive in the remote, Vogelkop mountain forests of the Bird’s Head peninsula in West Papua. This remarkable rediscovery of the pygmy long-fingered possum and the ring-tailed glider was confirmed by Australian scientist Professor Tim Flannery, alongside a team of local indigenous experts and university researchers.

“More important than finding a living thylacine in Tasmania.”

Scott Hucknull from Central Queensland University describes the magnitude of the discovery.

These species are rare examples of “Lazarus taxa”. Animals who disappear from the fossil record only to be found alive centuries later. Flannery noted that the likelihood of finding even one lost mammal was almost zero, let alone two.

“It’s unprecedented and groundbreaking, really, to find two Lazarus taxa,” Flannery says. “We’ve been able to finalise two pieces of work that are incredibly important from a biological and a conservation perspective, documenting the existence of rare marsupials in an area under threat. It’s sort of a crowning glory in my career as a biologist.”

The first of the resurrected species is the pygmy long-fingered possum, Dactylonax kambuayai. This tiny, striped marsupial possesses an extraordinary evolutionary trait: an elongated fourth finger on each hand that is double the length of other digits. Flannery explains that they use this finger to extract grubs from timber.

“They’ve got a whole lot of specialisations in their ear region as well, which seem to be related to detection of low-frequency sound. So presumably they’re listening for wood-boring beetle larvae, and they then rip open the rotting wood and use that finger to fish out the grub,” Flannery says.

The second species, the ring-tailed glider (Tous ayamaruensis), features unfurred ears and a strong, prehensile tail used for gripping branches. Flannery calls it “one of the most photogenic animals, most beautiful marsupials you’ll ever see.”

Crucially, the rediscovery of these elusive creatures was entirely dependent on the profound ecological knowledge of the local Tambrauw and Maybrat clans. These indigenous communities view the ring-tailed glider as deeply sacred, believing them to be manifestations of their ancestors’ spirits, and actively protect them from hunting. Rika Korain, a Maybrat woman and co-author of the research, emphasised that identifying the species relied entirely on traditional owners. “This connection has been essential,” she says.

“I’m very proud that Papuan researchers contributed to these landmark discoveries, and want to thank the people of the Misool, Maybrat and Tambrouw regions who supported us in the field,”

Dr Aksamina Yohanita of the University of Papua said.

“The Vogelkop is an ancient piece of the Australian continent that has become incorporated into the island of New Guinea. Its forests may shelter yet more hidden relics of a past Australia,”

Tim Flannery

To protect the remaining populations from the illegal wildlife trade, researchers are keeping their exact locations highly classified. Flannery delivered a stark warning to potential poachers regarding the animals’ survival in captivity: “They would be incredibly difficult to keep in captivity. because their diet is so highly specialised. Advanced warning for anyone who’s thinking of keeping one as a pet: it won’t live long,” he says.

While their rediscovery is a triumph, their future is highly uncertain. The proximity of power-hungry corporates intent on razing the rainforest for palm oil and timber casts a dark shadow over the region.

David Lindenmayer, an ecologist at the Australian National University, who was not involved in the study said “I am also hugely concerned about the extent of logging and land clearing happening in New Guinea,” he says. “It also makes me wonder what might have been lost in Australia as a result of all of the land clearing that has taken place here.”

The findings underline strong calls from scientists, environmentalists and indigenous rights advocates for Native Title legal land rights and indigenous-led protections of West Papua and its imperilled Vogelkop rainforest where these delightful marsupials are found.

Further information

Lam, L. (2026, March 6). Tiny possum and glider thought extinct for 6,000 years found in remote West Papua. BBC News. https://www.bbc.co.uk/news/articles/cwyg6p8g6yjo

Morton, A. (2026, March 6). Marsupials previously thought extinct for millennia discovered in New Guinea. The Guardian. https://www.theguardian.com/environment/2026/mar/05/marsupials-discovered-new-guinea

Woodford, J. (2026, March 5). Two marsupials believed extinct for 6000 years found alive. New Scientist. https://www.newscientist.com/article/2518082-two-marsupials-believed-extinct-for-6000-years-found-alive/

ENDS

Learn about other animals endangered by palm oil and other agriculture

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Marsupials thought extinct for 6,000 years found in West Papua

In an astonishing discovery, two marsupial species believed to be extinct for 6,000 years have been rediscovered alive and well in the remote rainforests of West Papua. The pygmy long-fingered possum and the ring-tailed glider were located with the crucial assistance of local indigenous Vogelkop clans. However, their survival remains precarious as their habitats are increasingly threatened by logging and the expansion of the palm oil colonialism in West Papua. Laws and native title to protect this region is essential for indigenous land defenders. We musn’t let them disappear again #BoycottPalmOil #Boycott4Wildlife

Two #extinct #marsupials in #WestPapua found alive! The #marsupials highlight the need to protect #Papuan forests or they are gone for good! Resist for them and #BoycottPalmOil #Boycott4Wildlife when you shop 🌴🙊🔥☠️🚫 @palmoildetect #Boycott4Wildlife https://wp.me/pcFhgU-iOH

Two #possums thought extinct for 6000 years are alive in #WestPapua! The pygmy #possum and sacred ring-tailed #glider are #nature’s battlers who deserve a break from #palmoil ecocide. Stand with #indigenous defenders against palm oil #colonialism! 🌴🚫 @palmoildetect #BoycottPalmOil https://wp.me/pcFhgU-iOH

https://youtu.be/T1uWC5ZE4KI

Two extraordinarily rare marsupials, entirely believed to have been extinct for over six thousand years, have been discovered alive in the remote, Vogelkop mountain forests of the Bird’s Head peninsula in West Papua. This remarkable rediscovery of the pygmy long-fingered possum and the ring-tailed glider was confirmed by Australian scientist Professor Tim Flannery, alongside a team of local indigenous experts and university researchers.

“More important than finding a living thylacine in Tasmania.”

Scott Hucknull from Central Queensland University describes the magnitude of the discovery.

These species are rare examples of “Lazarus taxa”. Animals who disappear from the fossil record only to be found alive centuries later. Flannery noted that the likelihood of finding even one lost mammal was almost zero, let alone two.

“It’s unprecedented and groundbreaking, really, to find two Lazarus taxa,” Flannery says. “We’ve been able to finalise two pieces of work that are incredibly important from a biological and a conservation perspective, documenting the existence of rare marsupials in an area under threat. It’s sort of a crowning glory in my career as a biologist.”

The first of the resurrected species is the pygmy long-fingered possum, Dactylonax kambuayai. This tiny, striped marsupial possesses an extraordinary evolutionary trait: an elongated fourth finger on each hand that is double the length of other digits. Flannery explains that they use this finger to extract grubs from timber.

“They’ve got a whole lot of specialisations in their ear region as well, which seem to be related to detection of low-frequency sound. So presumably they’re listening for wood-boring beetle larvae, and they then rip open the rotting wood and use that finger to fish out the grub,” Flannery says.

The second species, the ring-tailed glider (Tous ayamaruensis), features unfurred ears and a strong, prehensile tail used for gripping branches. Flannery calls it “one of the most photogenic animals, most beautiful marsupials you’ll ever see.”

Crucially, the rediscovery of these elusive creatures was entirely dependent on the profound ecological knowledge of the local Tambrauw and Maybrat clans. These indigenous communities view the ring-tailed glider as deeply sacred, believing them to be manifestations of their ancestors’ spirits, and actively protect them from hunting. Rika Korain, a Maybrat woman and co-author of the research, emphasised that identifying the species relied entirely on traditional owners. “This connection has been essential,” she says.

“I’m very proud that Papuan researchers contributed to these landmark discoveries, and want to thank the people of the Misool, Maybrat and Tambrouw regions who supported us in the field,”

Dr Aksamina Yohanita of the University of Papua said.

“The Vogelkop is an ancient piece of the Australian continent that has become incorporated into the island of New Guinea. Its forests may shelter yet more hidden relics of a past Australia,”

Tim Flannery

To protect the remaining populations from the illegal wildlife trade, researchers are keeping their exact locations highly classified. Flannery delivered a stark warning to potential poachers regarding the animals’ survival in captivity: “They would be incredibly difficult to keep in captivity. because their diet is so highly specialised. Advanced warning for anyone who’s thinking of keeping one as a pet: it won’t live long,” he says.

While their rediscovery is a triumph, their future is highly uncertain. The proximity of power-hungry corporates intent on razing the rainforest for palm oil and timber casts a dark shadow over the region.

David Lindenmayer, an ecologist at the Australian National University, who was not involved in the study said “I am also hugely concerned about the extent of logging and land clearing happening in New Guinea,” he says. “It also makes me wonder what might have been lost in Australia as a result of all of the land clearing that has taken place here.”

The findings underline strong calls from scientists, environmentalists and indigenous rights advocates for Native Title legal land rights and indigenous-led protections of West Papua and its imperilled Vogelkop rainforest where these delightful marsupials are found.

Further information

Lam, L. (2026, March 6). Tiny possum and glider thought extinct for 6,000 years found in remote West Papua. BBC News. https://www.bbc.co.uk/news/articles/cwyg6p8g6yjo

Morton, A. (2026, March 6). Marsupials previously thought extinct for millennia discovered in New Guinea. The Guardian. https://www.theguardian.com/environment/2026/mar/05/marsupials-discovered-new-guinea

Woodford, J. (2026, March 5). Two marsupials believed extinct for 6000 years found alive. New Scientist. https://www.newscientist.com/article/2518082-two-marsupials-believed-extinct-for-6000-years-found-alive/

ENDS

Learn about other animals endangered by palm oil and other agriculture

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Marsupials thought extinct for 6,000 years found in West Papua

In an astonishing discovery, two marsupial species believed to be extinct for 6,000 years have been rediscovered alive and well in the remote rainforests of West Papua. The pygmy long-fingered possum and the ring-tailed glider were located with the crucial assistance of local indigenous Vogelkop clans. However, their survival remains precarious as their habitats are increasingly threatened by logging and the expansion of the palm oil colonialism in West Papua. Laws and native title to protect this region is essential for indigenous land defenders. We musn’t let them disappear again #BoycottPalmOil #Boycott4Wildlife

Two #extinct #marsupials in #WestPapua found alive! The #marsupials highlight the need to protect #Papuan forests or they are gone for good! Resist for them and #BoycottPalmOil #Boycott4Wildlife when you shop 🌴🙊🔥☠️🚫 @palmoildetect #Boycott4Wildlife https://wp.me/pcFhgU-iOH

Two #possums thought extinct for 6000 years are alive in #WestPapua! The pygmy #possum and sacred ring-tailed #glider are #nature’s battlers who deserve a break from #palmoil ecocide. Stand with #indigenous defenders against palm oil #colonialism! 🌴🚫 @palmoildetect #BoycottPalmOil https://wp.me/pcFhgU-iOH

https://youtu.be/T1uWC5ZE4KI

Two extraordinarily rare marsupials, entirely believed to have been extinct for over six thousand years, have been discovered alive in the remote, Vogelkop mountain forests of the Bird’s Head peninsula in West Papua. This remarkable rediscovery of the pygmy long-fingered possum and the ring-tailed glider was confirmed by Australian scientist Professor Tim Flannery, alongside a team of local indigenous experts and university researchers.

“More important than finding a living thylacine in Tasmania.”

Scott Hucknull from Central Queensland University describes the magnitude of the discovery.

These species are rare examples of “Lazarus taxa”. Animals who disappear from the fossil record only to be found alive centuries later. Flannery noted that the likelihood of finding even one lost mammal was almost zero, let alone two.

“It’s unprecedented and groundbreaking, really, to find two Lazarus taxa,” Flannery says. “We’ve been able to finalise two pieces of work that are incredibly important from a biological and a conservation perspective, documenting the existence of rare marsupials in an area under threat. It’s sort of a crowning glory in my career as a biologist.”

The first of the resurrected species is the pygmy long-fingered possum, Dactylonax kambuayai. This tiny, striped marsupial possesses an extraordinary evolutionary trait: an elongated fourth finger on each hand that is double the length of other digits. Flannery explains that they use this finger to extract grubs from timber.

“They’ve got a whole lot of specialisations in their ear region as well, which seem to be related to detection of low-frequency sound. So presumably they’re listening for wood-boring beetle larvae, and they then rip open the rotting wood and use that finger to fish out the grub,” Flannery says.

The second species, the ring-tailed glider (Tous ayamaruensis), features unfurred ears and a strong, prehensile tail used for gripping branches. Flannery calls it “one of the most photogenic animals, most beautiful marsupials you’ll ever see.”

Crucially, the rediscovery of these elusive creatures was entirely dependent on the profound ecological knowledge of the local Tambrauw and Maybrat clans. These indigenous communities view the ring-tailed glider as deeply sacred, believing them to be manifestations of their ancestors’ spirits, and actively protect them from hunting. Rika Korain, a Maybrat woman and co-author of the research, emphasised that identifying the species relied entirely on traditional owners. “This connection has been essential,” she says.

“I’m very proud that Papuan researchers contributed to these landmark discoveries, and want to thank the people of the Misool, Maybrat and Tambrouw regions who supported us in the field,”

Dr Aksamina Yohanita of the University of Papua said.

“The Vogelkop is an ancient piece of the Australian continent that has become incorporated into the island of New Guinea. Its forests may shelter yet more hidden relics of a past Australia,”

Tim Flannery

To protect the remaining populations from the illegal wildlife trade, researchers are keeping their exact locations highly classified. Flannery delivered a stark warning to potential poachers regarding the animals’ survival in captivity: “They would be incredibly difficult to keep in captivity. because their diet is so highly specialised. Advanced warning for anyone who’s thinking of keeping one as a pet: it won’t live long,” he says.

While their rediscovery is a triumph, their future is highly uncertain. The proximity of power-hungry corporates intent on razing the rainforest for palm oil and timber casts a dark shadow over the region.

David Lindenmayer, an ecologist at the Australian National University, who was not involved in the study said “I am also hugely concerned about the extent of logging and land clearing happening in New Guinea,” he says. “It also makes me wonder what might have been lost in Australia as a result of all of the land clearing that has taken place here.”

The findings underline strong calls from scientists, environmentalists and indigenous rights advocates for Native Title legal land rights and indigenous-led protections of West Papua and its imperilled Vogelkop rainforest where these delightful marsupials are found.

Further information

Lam, L. (2026, March 6). Tiny possum and glider thought extinct for 6,000 years found in remote West Papua. BBC News. https://www.bbc.co.uk/news/articles/cwyg6p8g6yjo

Morton, A. (2026, March 6). Marsupials previously thought extinct for millennia discovered in New Guinea. The Guardian. https://www.theguardian.com/environment/2026/mar/05/marsupials-discovered-new-guinea

Woodford, J. (2026, March 5). Two marsupials believed extinct for 6000 years found alive. New Scientist. https://www.newscientist.com/article/2518082-two-marsupials-believed-extinct-for-6000-years-found-alive/

ENDS

Learn about other animals endangered by palm oil and other agriculture

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

"On my screen, the line charting the bat’s motions stirs: a tremor of movement, then a sharp burst of wingbeats. [.] In my ears, a rush of air surges past the tiny microphone, then there’s a splash, more wingbeats, and finally the faint, wet crunching of teeth. A few minutes later, it’s over. The bat has eaten the frog."

Great article with real sound samples [!] and insightful videos - love that!

https://theconversation.com/tiny-recording-backpacks-reveal-bats-surprising-hunting-strategy-271996

#bats #zoology #animalBehaviour #frogs

Do you love animals? Make every day #WorldWildlifeDay

This #WorldWildlifeDay, please remember the wild animals you love who are running out of time and land to live on. Research recently found that converting partly logged areas into palm oil plantations sounds the death knell for that ecosystem. Across the globe, from Indonesia to Brazil and Nigeria, vibrant rainforests and animals like reptiles and insects are under threat from palm oil, timber, and meat. This ecocide leaves majestic animals struggling to survive against chainsaws, bulldozers, pesticides and destruction for palm oil and meat agriculture. A multi-billion dollar industry has grown up around legitimising palm oil and meat ecocide, primarily through the RSPO but also other greenwashing schemes as well. Read on to discover more and how you can shine a light on the lives of elusive animals.

This #WorldWildlifeDay take action for #animals great and small 🦋🐦🐘🐒🐍 because #reptiles #insects #mammals and #birds deserve better than #palmoil ecocide and #extinction! When you shop always #Boycottpalmoil #Boycott4Wildlife @palmoildetect https://wp.me/pcFhgU-iMO

#Palmoil and #meat #agriculture 🥩💀 are some of the biggest threats to wild #animals and farmed animals. This #WorldWildlifeDay and every single day, make sure fight for them and go #vegan 🥕🍆🍅 #BoycottPalmOil 🌴🩸☠️🧐⛔️ and #Boycott4Wildlife https://wp.me/pcFhgU-iMO

https://youtu.be/98s3YF9UAfs

Protecting Sumatra’s last remaining tigers

The Sumatran tiger is teetering on the brink of extinction. Recent findings underscore the urgency of protecting the last remaining populations of these majestic apex predators. Deforestation for palm oil and illegal poaching are wiping out their homes. In the Ulu Masen Ecosystem, a recent study detected only 11 tigers, highlighting severe population stress from snares and habitat loss. Without immediate action, they face the same tragic fate as the extinct Javan and Balinese tigers. Strict global rainforest laws, enforcement of anti-poaching units, and a consumer boycott of palm oil hold the key to protecting Sumatra’s last living tigers.​

https://youtu.be/0g2Nv4cfBfo

Animals of Tesso Nilo in Sumatra are vanishing

Tesso Nilo National Park in Sumatra has lost an alarming 78% of primary forest between 2009 and 2023. The primary driver of this devastation is the expansion of illegal palm oil plantations. This rampant deforestation threatens the homes of critically endangered species like tigers, orangutans, and elephants. When palm oil companies build roads, they increase accessibility for poachers, further endangering the animals who live there. Advocating for indigenous-led conservation efforts and adopting a plant-based lifestyle are vital steps to protect these ecosystems.​

https://www.youtube.com/watch?v=z7FUBg_AqjA

56% of ‘data deficient’ species on the Red List are endangered

The destruction of wild ecosystems continues to push thousands of obscure species towards extinction finds a study by Norwegian University of Science and Technology. Researchers used advanced machine learning algorithms to assess the survival probability of thousands of under-researched animals, predicts that a staggering fifty-six percent of all “data deficient” species are currently threatened with extinction. 85% of unassessed amphibians face immediate existential threats, primarily driven by anthropogenic habitat degradation such as the unchecked expansion of palm oil plantations, meat agriculture, mining and timber logging. Right now is the time to fight for all life and reject products linked to ecocide. Always remember them and share out their posts! Start here on the forgotten animals page.

Sumatran elephants trapped by endless palm oil

In Indonesia’s North Aceh district, Sumatran elephants find themselves increasingly encircled by shrinking patches of forest, hemmed in all all sides by massive palm oil expansion. Just 924 to 1,360 individual Sumatran elephants remain alive. They are trapped in dead lands, surrounded by the very industry that is eradicating their food sources. Ongoing attempts by researchers to measure their populations have been hampered by the Indonesian government, which attempts to hide the truth from the media. Boycott palm oil when you shop to protect these irreplaceable beings.​

https://youtu.be/S5olrnYKT4Q

Toxic palm oil pesticides are killing baby macaques

In Peninsular Malaysia, infant southern pig-tailed macaques are dying at alarmingly high rates due to palm oil plantations. A recent study found that agricultural chemicals and pesticides cross the placental barrier of unborn macaques, impacting their development. Prolonged exposure to these toxic plantations during infancy makes baby macaques three times more likely to die. These intelligent primates face increased risks from predators, human encounters, and poisons. Take action and boycott palm oil to protect these precious infants.

The fight for the lives of Wondiwoi tree kangaroos

The Wondiwoi tree kangaroo is the world’s most endangered kangaroo. Rediscovered in 2018 in West Papua’s lush forests, these rare animals have beautiful soulful eyes and burnt umber fur. Tragically, fewer than 50 of them remain alive. They face severe threats from hunting and palm oil deforestation. Protecting them requires urgent conservation efforts that prioritise indigenous sovereignty. You can help save these remarkable creatures by refusing to buy products with palm oil that destroy their homes.​

Nigeria’s forest elephants face extinction

African forest elephants in Nigeria have seen their numbers decline massively in recent years. The main cause is human activity, specifically logging, cocoa agriculture, and palm oil plantations. These industries threaten their survival by destroying their natural habitat. As a result, fragmented elephant populations are highly vulnerable to poachers and retaliatory killings by farmers. We must halt the expansion of palm oil to secure a safe future for these majestic animals.​

https://youtu.be/s584AP-BYm0

The deadly green lie of “sustainable” palm oil

For decades, the palm oil industry has misled consumers with the false promise of “sustainable” palm oil. Industry watchdogs have repeatedly exposed the RSPO’s certification as a multi-stakeholder sham. Behind this green façade lies a brutal reality of deforestation, human rights abuses, and the destruction of endangered species’ habitats. There is no such thing as sustainable palm oil. We must not fall for their corporate greenwashing.​

https://www.youtube.com/watch?v=eG8V-Cmj4Es

Take action to protect rainforest animals

By holding to account the powerful corporations that control the world, we have the power to fight back against this ecocide. Here is how you can stand up for rainforest animals, farmed animals, indigenous people, and rainforests:

Make powerful lifestyle changes

The most impactful thing you can do is go plant-based in your diet. Boycott meat, boycott palm oil, and boycott dairy. These industries are the leading causes of global deforestation and animal cruelty.​

Supermarket sleuthing

Next time you are in the supermarket, take photos of products containing palm oil. Share these on social media to call out the greenwashing and ecocide of the brands who use it. Congratulate brands when they go completely palm oil-free.​

Join the #Boycott4Wildlife movement

Follow and join the Boycott4Wildlife movement on this website and social media. Share stories on BlueSky, Mastodon, Twitter and YouTube using the hashtags #Boycottpalmoil and #Boycott4Wildlife to be part of it!

Support indigenous sovereignty and agroecology

A viable path forward is to champion indigenous-led agroecology. Indigenous peoples possess the deep ecological knowledge required to protect forests and the intricate web of life that includes insects, birds, mammals and reptiles. Stand strongly with indigenous land defenders to protect what remains of the wild.

Learn about other animals endangered by palm oil and other agriculture

Gursky’s Spectral Tarsier Tarsius spectrumgurskyae

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

✓ Subscribed

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Beautiful and Doomed: Saving Bangladesh’s Langurs From Extinction

A recent study has found hybridisation (interbreeding) between critically endangered Phayre’s #langurs and endangered capped langurs in #Bangladesh, raises serious concerns about their genetic health and future survival as distinct species. Hybridisation is a serious sign of ecological disruption, and researchers point to human-related threats such as #palmoil and #timber #deforestation, habitat fragmentation, and #hunting as key drivers for them interbreeding. These pressures not only push the species to hybridise but also threaten their long-term existence in the wild, highlighting the urgent need for conservation efforts to address habitat destruction and protect these seriously endangered primates. 🌿 Help them when you shop, go #vegan and #BoycottPalmOil #Boycott4Wildlife

Beautiful Capped Langurs and Phayre’s #Langurs are interbreeding, risking both #species’ survival. Pressures of #palmoil #deforestation and #hunting are pushing the #monkeys to the edge in #Bangladesh #Boycottpalmoil #Boycott4Wildlife 🌴🚫 @palmoildetect https://wp.me/pcFhgU-9bY

Hybridisation/interbreeding of two beautiful #langur 🐵🐒species in #Bangladesh puts both #animals in serious peril finds #research study 😭. #Palmoil #deforestation is a major threat. Fight back and #Boycottpalmoil #Boycott4Wildlife 🌴🛢️⛔ @palmoildetect.bsky.social https://wp.me/pcFhgU-9bY

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

• Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs in the rainforests in the country’s northeast.
• A recent study has unveiled a trend of hybridisation between Phayre’s langurs and capped langurs in Bangladesh, which are listed as critically endangered and endangered, respectively, by IUCN.
• Hybridisation is a vital indicator of ecological change, and researchers are raising serious concerns about the genetic health of the two species and their future existence in the wild.
• The study holds human activities such as deforestation, habitat fragmentation and hunting as some of the causes responsible for increasing the risk of hybridisation cases.

A recent study revealed a troubling trend among the wild monkey population in Bangladesh’s northeastern forests. The study, conducted by the German Primate Centre, unveiled a concerning tendency of hybridisation between Phayre’s langurs (Trachypithecus phayrei) and capped langurs (Trachypithecus pileatus), listed as critically endangered and endangered, respectively, within Bangladesh by IUCN.

This hybridisation of the endangered primates, which researchers of the study say is caused by habitat loss due to deforestation and other human interferences, could push them to extinction in a few generations.

“Bangladesh’s langur populations are small and isolated, limiting gene flow. This hybridisation in restricted populations heightens their extinction risk. Furthermore, our laws primarily protect pure langurs, leaving hybrids unprotected. If hybrids persist into future generations, we’ll face tough decisions about their role in our ecosystem,” Tanvir Ahmed, the study’s lead researcher, told Mongabay.

Monirul H. Khan, a professor at Jahangirnagar University’s Zoology Department, agreed with Tanvir and said that the significance of interbreeding is that these langurs don’t survive for a long time.

“They are usually born infertile. So the population of langur will gradually decrease,” he said.

The study, published in the International Journal of Primatology, recently found that out of 98 langur groups observed, eight comprised both Phayre’s and capped langurs.

“We analysed genetic samples of the species in the lab and confirmed one case of hybridisation. This langur had a capped langur mother and a Phayre’s langur father. Another female with a hybrid appearance showed signs of motherhood, indicating that at least female hybrids are fertile and give birth to young,” Tanvir said.

“The genetic characteristics of a distinct species tend to become most threatened when their hybrid females can reproduce. Fertile hybrid females threaten to bring the two species closer together as the offsprings begin to mix characteristics. That is exactly what could be happening to them,” he said.

The research shows that the ‘spectacled’ Phayre’s langurs and the capped langurs, with their distinctive shock of black fur on their heads, are under threat of losing their distinct genetic makeup to hybridisation.

Researchers conducted the study over five years, between 2018 and 2023, in six forests in northeastern Bangladesh — Lawachara National Park, Satchari National Park, Rema-Kalenga Wildlife Sanctuary, Rajkandi Reserve Forest, Patharia Hill Reserve Forest and Atora Hill Reserve Forest.

The study involved field surveys for 92 days between March 2018 and April 2019 and from July to December 2022, employing three trained local eco-guides to monitor the mixed-species groups until October 2023.

Why hybridisation is a concern

The study shows that, although it’s relatively rare, hybridisation among primates is an escalating concern worldwide, often driven by habitat loss and fragmentation. It serves as a stark reminder of the significant impacts of human activity on biodiversity. The situation in Bangladesh gradually becoming more common emphasizes the urgent need for strong conservation efforts.

The study mentions how hybridisation is a vital indicator of ecological change, raising serious concerns about species’ genetic health. Tanvir added that this study is groundbreaking, as it documents the first hybridisation incidents among these langurs in Bangladesh and their entire distribution range.

Hybrids being fertile could lead to the extinction of the parent species. “Additionally, mixing species can enable the spread of diseases between previously unconnected populations, posing risks to both wildlife and human health, since these animals are often hunted and traded,” said Sabit Hasan, a researcher of the study.

The study blamed human activities such as palm oil deforestation, habitat fragmentation, hunting and trapping of primates as some of the causes that can increase the risk of such hybridisation.

“The existence of fertile hybrids is particularly alarming because it suggests that gene flow between these two endangered species could irreversibly affect their future genetic composition,” Tanvir said.

Primates of Bangladesh

Ten of the 121 mammal species found in Bangladesh are primates. According to the hybridisation study, Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs.

The Phayre’s langur has a brown to grey-brown back, white fur on its belly and face, and a “spectacled” appearance due to wide white rings around its eyes. Its face and extremities are black, and it has long hair on its head that points backward. Additionally, its tail is longer than its body and has a tuft of dark hair at the tip.

The capped langur is known for its distinctive crown of long, erect hairs on its head. It has a black face, grey to blackish-grey fur on top, and brownish-yellow or orange fur below, with the distal half of its tail being blackish.

The study suggested the government prioritize habitat preservation and create corridors to connect isolated primate populations, facilitating natural langur dispersal.

“If we don’t take action now, we risk losing not just two monkey species but also a vital part of Bangladesh’s biodiversity,” Tanvir said.

Banner image: The genetically confirmed hybrid (right) with its capped langur mother at Satchari National Park. Image by Harish Debbarma.

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

ENDS

Learn about other animals endangered by palm oil and other agriculture

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Tucuxi Sotalia fluviatilis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Beautiful and Doomed: Saving Bangladesh’s Langurs From Extinction

A recent study has found hybridisation (interbreeding) between critically endangered Phayre’s #langurs and endangered capped langurs in #Bangladesh, raises serious concerns about their genetic health and future survival as distinct species. Hybridisation is a serious sign of ecological disruption, and researchers point to human-related threats such as #palmoil and #timber #deforestation, habitat fragmentation, and #hunting as key drivers for them interbreeding. These pressures not only push the species to hybridise but also threaten their long-term existence in the wild, highlighting the urgent need for conservation efforts to address habitat destruction and protect these seriously endangered primates. 🌿 Help them when you shop, go #vegan and #BoycottPalmOil #Boycott4Wildlife

Beautiful Capped Langurs and Phayre’s #Langurs are interbreeding, risking both #species’ survival. Pressures of #palmoil #deforestation and #hunting are pushing the #monkeys to the edge in #Bangladesh #Boycottpalmoil #Boycott4Wildlife 🌴🚫 @palmoildetect https://wp.me/pcFhgU-9bY

Hybridisation/interbreeding of two beautiful #langur 🐵🐒species in #Bangladesh puts both #animals in serious peril finds #research study 😭. #Palmoil #deforestation is a major threat. Fight back and #Boycottpalmoil #Boycott4Wildlife 🌴🛢️⛔ @palmoildetect.bsky.social https://wp.me/pcFhgU-9bY

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

• Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs in the rainforests in the country’s northeast.
• A recent study has unveiled a trend of hybridisation between Phayre’s langurs and capped langurs in Bangladesh, which are listed as critically endangered and endangered, respectively, by IUCN.
• Hybridisation is a vital indicator of ecological change, and researchers are raising serious concerns about the genetic health of the two species and their future existence in the wild.
• The study holds human activities such as deforestation, habitat fragmentation and hunting as some of the causes responsible for increasing the risk of hybridisation cases.

A recent study revealed a troubling trend among the wild monkey population in Bangladesh’s northeastern forests. The study, conducted by the German Primate Centre, unveiled a concerning tendency of hybridisation between Phayre’s langurs (Trachypithecus phayrei) and capped langurs (Trachypithecus pileatus), listed as critically endangered and endangered, respectively, within Bangladesh by IUCN.

This hybridisation of the endangered primates, which researchers of the study say is caused by habitat loss due to deforestation and other human interferences, could push them to extinction in a few generations.

“Bangladesh’s langur populations are small and isolated, limiting gene flow. This hybridisation in restricted populations heightens their extinction risk. Furthermore, our laws primarily protect pure langurs, leaving hybrids unprotected. If hybrids persist into future generations, we’ll face tough decisions about their role in our ecosystem,” Tanvir Ahmed, the study’s lead researcher, told Mongabay.

Monirul H. Khan, a professor at Jahangirnagar University’s Zoology Department, agreed with Tanvir and said that the significance of interbreeding is that these langurs don’t survive for a long time.

“They are usually born infertile. So the population of langur will gradually decrease,” he said.

The study, published in the International Journal of Primatology, recently found that out of 98 langur groups observed, eight comprised both Phayre’s and capped langurs.

“We analysed genetic samples of the species in the lab and confirmed one case of hybridisation. This langur had a capped langur mother and a Phayre’s langur father. Another female with a hybrid appearance showed signs of motherhood, indicating that at least female hybrids are fertile and give birth to young,” Tanvir said.

“The genetic characteristics of a distinct species tend to become most threatened when their hybrid females can reproduce. Fertile hybrid females threaten to bring the two species closer together as the offsprings begin to mix characteristics. That is exactly what could be happening to them,” he said.

The research shows that the ‘spectacled’ Phayre’s langurs and the capped langurs, with their distinctive shock of black fur on their heads, are under threat of losing their distinct genetic makeup to hybridisation.

Researchers conducted the study over five years, between 2018 and 2023, in six forests in northeastern Bangladesh — Lawachara National Park, Satchari National Park, Rema-Kalenga Wildlife Sanctuary, Rajkandi Reserve Forest, Patharia Hill Reserve Forest and Atora Hill Reserve Forest.

The study involved field surveys for 92 days between March 2018 and April 2019 and from July to December 2022, employing three trained local eco-guides to monitor the mixed-species groups until October 2023.

Why hybridisation is a concern

The study shows that, although it’s relatively rare, hybridisation among primates is an escalating concern worldwide, often driven by habitat loss and fragmentation. It serves as a stark reminder of the significant impacts of human activity on biodiversity. The situation in Bangladesh gradually becoming more common emphasizes the urgent need for strong conservation efforts.

The study mentions how hybridisation is a vital indicator of ecological change, raising serious concerns about species’ genetic health. Tanvir added that this study is groundbreaking, as it documents the first hybridisation incidents among these langurs in Bangladesh and their entire distribution range.

Hybrids being fertile could lead to the extinction of the parent species. “Additionally, mixing species can enable the spread of diseases between previously unconnected populations, posing risks to both wildlife and human health, since these animals are often hunted and traded,” said Sabit Hasan, a researcher of the study.

The study blamed human activities such as palm oil deforestation, habitat fragmentation, hunting and trapping of primates as some of the causes that can increase the risk of such hybridisation.

“The existence of fertile hybrids is particularly alarming because it suggests that gene flow between these two endangered species could irreversibly affect their future genetic composition,” Tanvir said.

Primates of Bangladesh

Ten of the 121 mammal species found in Bangladesh are primates. According to the hybridisation study, Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs.

The Phayre’s langur has a brown to grey-brown back, white fur on its belly and face, and a “spectacled” appearance due to wide white rings around its eyes. Its face and extremities are black, and it has long hair on its head that points backward. Additionally, its tail is longer than its body and has a tuft of dark hair at the tip.

The capped langur is known for its distinctive crown of long, erect hairs on its head. It has a black face, grey to blackish-grey fur on top, and brownish-yellow or orange fur below, with the distal half of its tail being blackish.

The study suggested the government prioritize habitat preservation and create corridors to connect isolated primate populations, facilitating natural langur dispersal.

“If we don’t take action now, we risk losing not just two monkey species but also a vital part of Bangladesh’s biodiversity,” Tanvir said.

Banner image: The genetically confirmed hybrid (right) with its capped langur mother at Satchari National Park. Image by Harish Debbarma.

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

ENDS

Learn about other animals endangered by palm oil and other agriculture

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Tucuxi Sotalia fluviatilis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Beautiful and Doomed: Saving Bangladesh’s Langurs From Extinction

A recent study has found hybridisation (interbreeding) between critically endangered Phayre’s #langurs and endangered capped langurs in #Bangladesh, raises serious concerns about their genetic health and future survival as distinct species. Hybridisation is a serious sign of ecological disruption, and researchers point to human-related threats such as #palmoil and #timber #deforestation, habitat fragmentation, and #hunting as key drivers for them interbreeding. These pressures not only push the species to hybridise but also threaten their long-term existence in the wild, highlighting the urgent need for conservation efforts to address habitat destruction and protect these seriously endangered primates. 🌿 Help them when you shop, go #vegan and #BoycottPalmOil #Boycott4Wildlife

Beautiful Capped Langurs and Phayre’s #Langurs are interbreeding, risking both #species’ survival. Pressures of #palmoil #deforestation and #hunting are pushing the #monkeys to the edge in #Bangladesh #Boycottpalmoil #Boycott4Wildlife 🌴🚫 @palmoildetect https://wp.me/pcFhgU-9bY

Hybridisation/interbreeding of two beautiful #langur 🐵🐒species in #Bangladesh puts both #animals in serious peril finds #research study 😭. #Palmoil #deforestation is a major threat. Fight back and #Boycottpalmoil #Boycott4Wildlife 🌴🛢️⛔ @palmoildetect.bsky.social https://wp.me/pcFhgU-9bY

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

• Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs in the rainforests in the country’s northeast.
• A recent study has unveiled a trend of hybridisation between Phayre’s langurs and capped langurs in Bangladesh, which are listed as critically endangered and endangered, respectively, by IUCN.
• Hybridisation is a vital indicator of ecological change, and researchers are raising serious concerns about the genetic health of the two species and their future existence in the wild.
• The study holds human activities such as deforestation, habitat fragmentation and hunting as some of the causes responsible for increasing the risk of hybridisation cases.

A recent study revealed a troubling trend among the wild monkey population in Bangladesh’s northeastern forests. The study, conducted by the German Primate Centre, unveiled a concerning tendency of hybridisation between Phayre’s langurs (Trachypithecus phayrei) and capped langurs (Trachypithecus pileatus), listed as critically endangered and endangered, respectively, within Bangladesh by IUCN.

This hybridisation of the endangered primates, which researchers of the study say is caused by habitat loss due to deforestation and other human interferences, could push them to extinction in a few generations.

“Bangladesh’s langur populations are small and isolated, limiting gene flow. This hybridisation in restricted populations heightens their extinction risk. Furthermore, our laws primarily protect pure langurs, leaving hybrids unprotected. If hybrids persist into future generations, we’ll face tough decisions about their role in our ecosystem,” Tanvir Ahmed, the study’s lead researcher, told Mongabay.

Monirul H. Khan, a professor at Jahangirnagar University’s Zoology Department, agreed with Tanvir and said that the significance of interbreeding is that these langurs don’t survive for a long time.

“They are usually born infertile. So the population of langur will gradually decrease,” he said.

The study, published in the International Journal of Primatology, recently found that out of 98 langur groups observed, eight comprised both Phayre’s and capped langurs.

“We analysed genetic samples of the species in the lab and confirmed one case of hybridisation. This langur had a capped langur mother and a Phayre’s langur father. Another female with a hybrid appearance showed signs of motherhood, indicating that at least female hybrids are fertile and give birth to young,” Tanvir said.

“The genetic characteristics of a distinct species tend to become most threatened when their hybrid females can reproduce. Fertile hybrid females threaten to bring the two species closer together as the offsprings begin to mix characteristics. That is exactly what could be happening to them,” he said.

The research shows that the ‘spectacled’ Phayre’s langurs and the capped langurs, with their distinctive shock of black fur on their heads, are under threat of losing their distinct genetic makeup to hybridisation.

Researchers conducted the study over five years, between 2018 and 2023, in six forests in northeastern Bangladesh — Lawachara National Park, Satchari National Park, Rema-Kalenga Wildlife Sanctuary, Rajkandi Reserve Forest, Patharia Hill Reserve Forest and Atora Hill Reserve Forest.

The study involved field surveys for 92 days between March 2018 and April 2019 and from July to December 2022, employing three trained local eco-guides to monitor the mixed-species groups until October 2023.

Why hybridisation is a concern

The study shows that, although it’s relatively rare, hybridisation among primates is an escalating concern worldwide, often driven by habitat loss and fragmentation. It serves as a stark reminder of the significant impacts of human activity on biodiversity. The situation in Bangladesh gradually becoming more common emphasizes the urgent need for strong conservation efforts.

The study mentions how hybridisation is a vital indicator of ecological change, raising serious concerns about species’ genetic health. Tanvir added that this study is groundbreaking, as it documents the first hybridisation incidents among these langurs in Bangladesh and their entire distribution range.

Hybrids being fertile could lead to the extinction of the parent species. “Additionally, mixing species can enable the spread of diseases between previously unconnected populations, posing risks to both wildlife and human health, since these animals are often hunted and traded,” said Sabit Hasan, a researcher of the study.

The study blamed human activities such as palm oil deforestation, habitat fragmentation, hunting and trapping of primates as some of the causes that can increase the risk of such hybridisation.

“The existence of fertile hybrids is particularly alarming because it suggests that gene flow between these two endangered species could irreversibly affect their future genetic composition,” Tanvir said.

Primates of Bangladesh

Ten of the 121 mammal species found in Bangladesh are primates. According to the hybridisation study, Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs.

The Phayre’s langur has a brown to grey-brown back, white fur on its belly and face, and a “spectacled” appearance due to wide white rings around its eyes. Its face and extremities are black, and it has long hair on its head that points backward. Additionally, its tail is longer than its body and has a tuft of dark hair at the tip.

The capped langur is known for its distinctive crown of long, erect hairs on its head. It has a black face, grey to blackish-grey fur on top, and brownish-yellow or orange fur below, with the distal half of its tail being blackish.

The study suggested the government prioritize habitat preservation and create corridors to connect isolated primate populations, facilitating natural langur dispersal.

“If we don’t take action now, we risk losing not just two monkey species but also a vital part of Bangladesh’s biodiversity,” Tanvir said.

Banner image: The genetically confirmed hybrid (right) with its capped langur mother at Satchari National Park. Image by Harish Debbarma.

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

ENDS

Learn about other animals endangered by palm oil and other agriculture

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Tucuxi Sotalia fluviatilis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

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Enter your email address

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2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Beautiful and Doomed: Saving Bangladesh’s Langurs From Extinction

A recent study has found hybridisation (interbreeding) between critically endangered Phayre’s #langurs and endangered capped langurs in #Bangladesh, raises serious concerns about their genetic health and future survival as distinct species. Hybridisation is a serious sign of ecological disruption, and researchers point to human-related threats such as #palmoil and #timber #deforestation, habitat fragmentation, and #hunting as key drivers for them interbreeding. These pressures not only push the species to hybridise but also threaten their long-term existence in the wild, highlighting the urgent need for conservation efforts to address habitat destruction and protect these seriously endangered primates. 🌿 Help them when you shop, go #vegan and #BoycottPalmOil #Boycott4Wildlife

Beautiful Capped Langurs and Phayre’s #Langurs are interbreeding, risking both #species’ survival. Pressures of #palmoil #deforestation and #hunting are pushing the #monkeys to the edge in #Bangladesh #Boycottpalmoil #Boycott4Wildlife 🌴🚫 @palmoildetect https://wp.me/pcFhgU-9bY

Hybridisation/interbreeding of two beautiful #langur 🐵🐒species in #Bangladesh puts both #animals in serious peril finds #research study 😭. #Palmoil #deforestation is a major threat. Fight back and #Boycottpalmoil #Boycott4Wildlife 🌴🛢️⛔ @palmoildetect.bsky.social https://wp.me/pcFhgU-9bY

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

• Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs in the rainforests in the country’s northeast.
• A recent study has unveiled a trend of hybridisation between Phayre’s langurs and capped langurs in Bangladesh, which are listed as critically endangered and endangered, respectively, by IUCN.
• Hybridisation is a vital indicator of ecological change, and researchers are raising serious concerns about the genetic health of the two species and their future existence in the wild.
• The study holds human activities such as deforestation, habitat fragmentation and hunting as some of the causes responsible for increasing the risk of hybridisation cases.

A recent study revealed a troubling trend among the wild monkey population in Bangladesh’s northeastern forests. The study, conducted by the German Primate Centre, unveiled a concerning tendency of hybridisation between Phayre’s langurs (Trachypithecus phayrei) and capped langurs (Trachypithecus pileatus), listed as critically endangered and endangered, respectively, within Bangladesh by IUCN.

This hybridisation of the endangered primates, which researchers of the study say is caused by habitat loss due to deforestation and other human interferences, could push them to extinction in a few generations.

“Bangladesh’s langur populations are small and isolated, limiting gene flow. This hybridisation in restricted populations heightens their extinction risk. Furthermore, our laws primarily protect pure langurs, leaving hybrids unprotected. If hybrids persist into future generations, we’ll face tough decisions about their role in our ecosystem,” Tanvir Ahmed, the study’s lead researcher, told Mongabay.

Monirul H. Khan, a professor at Jahangirnagar University’s Zoology Department, agreed with Tanvir and said that the significance of interbreeding is that these langurs don’t survive for a long time.

“They are usually born infertile. So the population of langur will gradually decrease,” he said.

The study, published in the International Journal of Primatology, recently found that out of 98 langur groups observed, eight comprised both Phayre’s and capped langurs.

“We analysed genetic samples of the species in the lab and confirmed one case of hybridisation. This langur had a capped langur mother and a Phayre’s langur father. Another female with a hybrid appearance showed signs of motherhood, indicating that at least female hybrids are fertile and give birth to young,” Tanvir said.

“The genetic characteristics of a distinct species tend to become most threatened when their hybrid females can reproduce. Fertile hybrid females threaten to bring the two species closer together as the offsprings begin to mix characteristics. That is exactly what could be happening to them,” he said.

The research shows that the ‘spectacled’ Phayre’s langurs and the capped langurs, with their distinctive shock of black fur on their heads, are under threat of losing their distinct genetic makeup to hybridisation.

Researchers conducted the study over five years, between 2018 and 2023, in six forests in northeastern Bangladesh — Lawachara National Park, Satchari National Park, Rema-Kalenga Wildlife Sanctuary, Rajkandi Reserve Forest, Patharia Hill Reserve Forest and Atora Hill Reserve Forest.

The study involved field surveys for 92 days between March 2018 and April 2019 and from July to December 2022, employing three trained local eco-guides to monitor the mixed-species groups until October 2023.

Why hybridisation is a concern

The study shows that, although it’s relatively rare, hybridisation among primates is an escalating concern worldwide, often driven by habitat loss and fragmentation. It serves as a stark reminder of the significant impacts of human activity on biodiversity. The situation in Bangladesh gradually becoming more common emphasizes the urgent need for strong conservation efforts.

The study mentions how hybridisation is a vital indicator of ecological change, raising serious concerns about species’ genetic health. Tanvir added that this study is groundbreaking, as it documents the first hybridisation incidents among these langurs in Bangladesh and their entire distribution range.

Hybrids being fertile could lead to the extinction of the parent species. “Additionally, mixing species can enable the spread of diseases between previously unconnected populations, posing risks to both wildlife and human health, since these animals are often hunted and traded,” said Sabit Hasan, a researcher of the study.

The study blamed human activities such as palm oil deforestation, habitat fragmentation, hunting and trapping of primates as some of the causes that can increase the risk of such hybridisation.

“The existence of fertile hybrids is particularly alarming because it suggests that gene flow between these two endangered species could irreversibly affect their future genetic composition,” Tanvir said.

Primates of Bangladesh

Ten of the 121 mammal species found in Bangladesh are primates. According to the hybridisation study, Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs.

The Phayre’s langur has a brown to grey-brown back, white fur on its belly and face, and a “spectacled” appearance due to wide white rings around its eyes. Its face and extremities are black, and it has long hair on its head that points backward. Additionally, its tail is longer than its body and has a tuft of dark hair at the tip.

The capped langur is known for its distinctive crown of long, erect hairs on its head. It has a black face, grey to blackish-grey fur on top, and brownish-yellow or orange fur below, with the distal half of its tail being blackish.

The study suggested the government prioritize habitat preservation and create corridors to connect isolated primate populations, facilitating natural langur dispersal.

“If we don’t take action now, we risk losing not just two monkey species but also a vital part of Bangladesh’s biodiversity,” Tanvir said.

Banner image: The genetically confirmed hybrid (right) with its capped langur mother at Satchari National Park. Image by Harish Debbarma.

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

ENDS

Learn about other animals endangered by palm oil and other agriculture

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Tucuxi Sotalia fluviatilis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

Beautiful and Doomed: Saving Bangladesh’s Langurs From Extinction

A recent study has found hybridisation (interbreeding) between critically endangered Phayre’s #langurs and endangered capped langurs in #Bangladesh, raises serious concerns about their genetic health and future survival as distinct species. Hybridisation is a serious sign of ecological disruption, and researchers point to human-related threats such as #palmoil and #timber #deforestation, habitat fragmentation, and #hunting as key drivers for them interbreeding. These pressures not only push the species to hybridise but also threaten their long-term existence in the wild, highlighting the urgent need for conservation efforts to address habitat destruction and protect these seriously endangered primates. 🌿 Help them when you shop, go #vegan and #BoycottPalmOil #Boycott4Wildlife

Beautiful Capped Langurs and Phayre’s #Langurs are interbreeding, risking both #species’ survival. Pressures of #palmoil #deforestation and #hunting are pushing the #monkeys to the edge in #Bangladesh #Boycottpalmoil #Boycott4Wildlife 🌴🚫 @palmoildetect https://wp.me/pcFhgU-9bY

Hybridisation/interbreeding of two beautiful #langur 🐵🐒species in #Bangladesh puts both #animals in serious peril finds #research study 😭. #Palmoil #deforestation is a major threat. Fight back and #Boycottpalmoil #Boycott4Wildlife 🌴🛢️⛔ @palmoildetect.bsky.social https://wp.me/pcFhgU-9bY

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

• Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs in the rainforests in the country’s northeast.
• A recent study has unveiled a trend of hybridisation between Phayre’s langurs and capped langurs in Bangladesh, which are listed as critically endangered and endangered, respectively, by IUCN.
• Hybridisation is a vital indicator of ecological change, and researchers are raising serious concerns about the genetic health of the two species and their future existence in the wild.
• The study holds human activities such as deforestation, habitat fragmentation and hunting as some of the causes responsible for increasing the risk of hybridisation cases.

A recent study revealed a troubling trend among the wild monkey population in Bangladesh’s northeastern forests. The study, conducted by the German Primate Centre, unveiled a concerning tendency of hybridisation between Phayre’s langurs (Trachypithecus phayrei) and capped langurs (Trachypithecus pileatus), listed as critically endangered and endangered, respectively, within Bangladesh by IUCN.

This hybridisation of the endangered primates, which researchers of the study say is caused by habitat loss due to deforestation and other human interferences, could push them to extinction in a few generations.

“Bangladesh’s langur populations are small and isolated, limiting gene flow. This hybridisation in restricted populations heightens their extinction risk. Furthermore, our laws primarily protect pure langurs, leaving hybrids unprotected. If hybrids persist into future generations, we’ll face tough decisions about their role in our ecosystem,” Tanvir Ahmed, the study’s lead researcher, told Mongabay.

Monirul H. Khan, a professor at Jahangirnagar University’s Zoology Department, agreed with Tanvir and said that the significance of interbreeding is that these langurs don’t survive for a long time.

“They are usually born infertile. So the population of langur will gradually decrease,” he said.

The study, published in the International Journal of Primatology, recently found that out of 98 langur groups observed, eight comprised both Phayre’s and capped langurs.

“We analysed genetic samples of the species in the lab and confirmed one case of hybridisation. This langur had a capped langur mother and a Phayre’s langur father. Another female with a hybrid appearance showed signs of motherhood, indicating that at least female hybrids are fertile and give birth to young,” Tanvir said.

“The genetic characteristics of a distinct species tend to become most threatened when their hybrid females can reproduce. Fertile hybrid females threaten to bring the two species closer together as the offsprings begin to mix characteristics. That is exactly what could be happening to them,” he said.

The research shows that the ‘spectacled’ Phayre’s langurs and the capped langurs, with their distinctive shock of black fur on their heads, are under threat of losing their distinct genetic makeup to hybridisation.

Researchers conducted the study over five years, between 2018 and 2023, in six forests in northeastern Bangladesh — Lawachara National Park, Satchari National Park, Rema-Kalenga Wildlife Sanctuary, Rajkandi Reserve Forest, Patharia Hill Reserve Forest and Atora Hill Reserve Forest.

The study involved field surveys for 92 days between March 2018 and April 2019 and from July to December 2022, employing three trained local eco-guides to monitor the mixed-species groups until October 2023.

Why hybridisation is a concern

The study shows that, although it’s relatively rare, hybridisation among primates is an escalating concern worldwide, often driven by habitat loss and fragmentation. It serves as a stark reminder of the significant impacts of human activity on biodiversity. The situation in Bangladesh gradually becoming more common emphasizes the urgent need for strong conservation efforts.

The study mentions how hybridisation is a vital indicator of ecological change, raising serious concerns about species’ genetic health. Tanvir added that this study is groundbreaking, as it documents the first hybridisation incidents among these langurs in Bangladesh and their entire distribution range.

Hybrids being fertile could lead to the extinction of the parent species. “Additionally, mixing species can enable the spread of diseases between previously unconnected populations, posing risks to both wildlife and human health, since these animals are often hunted and traded,” said Sabit Hasan, a researcher of the study.

The study blamed human activities such as palm oil deforestation, habitat fragmentation, hunting and trapping of primates as some of the causes that can increase the risk of such hybridisation.

“The existence of fertile hybrids is particularly alarming because it suggests that gene flow between these two endangered species could irreversibly affect their future genetic composition,” Tanvir said.

Primates of Bangladesh

Ten of the 121 mammal species found in Bangladesh are primates. According to the hybridisation study, Bangladesh is home to less than 500 Phayre’s langurs and 600 capped langurs.

The Phayre’s langur has a brown to grey-brown back, white fur on its belly and face, and a “spectacled” appearance due to wide white rings around its eyes. Its face and extremities are black, and it has long hair on its head that points backward. Additionally, its tail is longer than its body and has a tuft of dark hair at the tip.

The capped langur is known for its distinctive crown of long, erect hairs on its head. It has a black face, grey to blackish-grey fur on top, and brownish-yellow or orange fur below, with the distal half of its tail being blackish.

The study suggested the government prioritize habitat preservation and create corridors to connect isolated primate populations, facilitating natural langur dispersal.

“If we don’t take action now, we risk losing not just two monkey species but also a vital part of Bangladesh’s biodiversity,” Tanvir said.

Banner image: The genetically confirmed hybrid (right) with its capped langur mother at Satchari National Park. Image by Harish Debbarma.

This article was originally published in Mongabay and was written by Mohammad Al-Masum Molla, read the original article. Republished under Creative Commons attribution licence. Research by Ahmed, T., Hasan, S., Nath, S., Biswas, S. … Roos, C. (2024). Mixed-Species Groups and Genetically Confirmed Hybridization Between Sympatric Phayre’s Langur (Trachypithecus phayrei) and Capped Langur (T. pileatus) in Northeast Bangladesh. International Journal of Primatology. doi:10.1007/s10764-024-00459-x

ENDS

Learn about other animals endangered by palm oil and other agriculture

Sunda Flying Lemur Galeopterus variegatus

Western Parotia Parotia sefilata

Capped Langur Trachypithecus pileatus

Mountain Tapir Tapirus pinchaque

Saola Pseudoryx nghetinhensis

Tucuxi Sotalia fluviatilis

Learn about “sustainable” palm oil greenwashing

Read more about RSPO greenwashing

A 2019 World Health Organisation (WHO) report into the palm oil industry and RSPO finds extensive greenwashing of palm oil deforestation and the murder of endangered animals (i.e. biodiversity loss)

Take Action in Five Ways

1. Join the #Boycott4Wildlife on social media and subscribe to stay in the loop: Share posts from this website to your own network on Twitter, Mastadon, Instagram, Facebook and Youtube using the hashtags #Boycottpalmoil #Boycott4Wildlife.

• Twitter
• Facebook
• Instagram
• WordPress
• YouTube
• Mail
• Mastodon

Enter your email address

Sign Up

2. Contribute stories: Academics, conservationists, scientists, indigenous rights advocates and animal rights advocates working to expose the corruption of the palm oil industry or to save animals can contribute stories to the website.

Wildlife Artist Juanchi Pérez

Mel Lumby: Dedicated Devotee to Borneo’s Living Beings

Anthropologist and Author Dr Sophie Chao

Health Physician Dr Evan Allen

The World’s Most Loved Cup: A Social, Ethical & Environmental History of Coffee by Aviary Doert

How do we stop the world’s ecosystems from going into a death spiral? A #SteadyState Economy

3. Supermarket sleuthing: Next time you’re in the supermarket, take photos of products containing palm oil. Share these to social media along with the hashtags to call out the greenwashing and ecocide of the brands who use palm oil. You can also take photos of palm oil free products and congratulate brands when they go palm oil free.

https://twitter.com/CuriousApe4/status/1526136783557529600?s=20

https://twitter.com/PhillDixon1/status/1749010345555788144?s=20

https://twitter.com/mugabe139/status/1678027567977078784?s=20

4. Take to the streets: Get in touch with Palm Oil Detectives to find out more.

5. Donate: Make a one-off or monthly donation to Palm Oil Detectives as a way of saying thank you and to help pay for ongoing running costs of the website and social media campaigns. Donate here

🎂 To celebrate the 20th anniversary of Interface, @promanczuk and I wrote a perspective on the future of interdisciplinary research in collective animal behaviour.

Anticipating two decades of research was slightly intimidating... but we gave it a go!

👉 (open access) https://doi.org/10.1098/rsif.2025.0582

#CollectiveBehaviour #AnimalBehaviour #Ecology #Modelling #Physics

@nathanlovestrees @mycrowgirl Love this post and thread #basicneeds #animalbehaviour