#echinoderms — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #echinoderms, aggregated by home.social.
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New from @jgeekstudies
"While many of these groups have already been analyzed and documented, one phylum of marine invertebrates represented in Pokémon, the echinoderms, has yet to be explored."
#Pokemon #Echinoderms #Biology #Nature #Environment #Biodiversity
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New from @jgeekstudies
"While many of these groups have already been analyzed and documented, one phylum of marine invertebrates represented in Pokémon, the echinoderms, has yet to be explored."
#Pokemon #Echinoderms #Biology #Nature #Environment #Biodiversity
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A black Feather star and Comatule and fish - anthias
#gili #giliislands #lombok #singapore #diving #scuba #trawangan #diveandstay #giliair #weekend #ocean #sealife #marinelife #fiish #reef #coral #echinoderms -
A black Feather star and Comatule and fish - anthias
#gili #giliislands #lombok #singapore #diving #scuba #trawangan #diveandstay #giliair #weekend #ocean #sealife #marinelife #fiish #reef #coral #echinoderms -
An orange starfish - Echinoderm
#gili #giliislands #lombok #singapore #diving #scuba #trawangan #diveandstay #giliair #weekend #ocean #sealife #marinelife #starfish #reef #seastar #echinoderms -
An orange starfish - Echinoderm
#gili #giliislands #lombok #singapore #diving #scuba #trawangan #diveandstay #giliair #weekend #ocean #sealife #marinelife #starfish #reef #seastar #echinoderms -
Starfish with 7 arms - Echinoderms
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #singaporedivers #ocean #sealife #marinelife #echinoderms #starfish -
Starfish with 7 arms - Echinoderms
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #singaporedivers #ocean #sealife #marinelife #echinoderms #starfish -
#echinoderms have internal skeletons made of hard plates usually covered with spines
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Fire Urchin (Asthenosoma varium), Anilao. These are always worth checking for commensal shrimp and crabs, and they often get all the attention, but urchins are also pretty cool in their own right. #MarineLife #echinoderms #Invertebrates 🌿
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Fire Urchin (Asthenosoma varium), Anilao. These are always worth checking for commensal shrimp and crabs, and they often get all the attention, but urchins are also pretty cool in their own right. #MarineLife #echinoderms #Invertebrates 🌿
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From Die Asteriden der Siboga-Expedition (1917).
Source: Smithsonian Libraries and Archives / Biodiversity Heritage LibraryInternet Archive
https://pdimagearchive.org/images/917f0e27-3097-46ac-855b-3e01070c1fe6
#collage #marine #biology #sea #oceans #starfish #echinoderms #art #publicdomain
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From Die Asteriden der Siboga-Expedition (1917).
Source: Smithsonian Libraries and Archives / Biodiversity Heritage LibraryInternet Archive
https://pdimagearchive.org/images/917f0e27-3097-46ac-855b-3e01070c1fe6
#collage #marine #biology #sea #oceans #starfish #echinoderms #art #publicdomain
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From Die Asteriden der Siboga-Expedition (1917).
Source: Smithsonian Libraries and Archives / Biodiversity Heritage LibraryInternet Archive
https://pdimagearchive.org/images/6cdf75a7-dccf-49c9-ab98-8194eed88265
#collage #marine #biology #sea #oceans #starfish #echinoderms #art #publicdomain
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From Die Asteriden der Siboga-Expedition (1917).
Source: Smithsonian Libraries and Archives / Biodiversity Heritage LibraryInternet Archive
https://pdimagearchive.org/images/6cdf75a7-dccf-49c9-ab98-8194eed88265
#collage #marine #biology #sea #oceans #starfish #echinoderms #art #publicdomain
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Great Barrier Reef Echinoderms (1893) by William Saville-Kent, from The Great Barrier Reef of Australia.
Source: RawPixel / Biodiversity Heritage Library
Available to buy as a print.
https://pdimagearchive.org/images/5d14f28e-79f6-4809-9d38-36012f90dd9c
#biodiversity #fish #invertebrates #echinoderms #australia #corals #art #publicdomain
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Great Barrier Reef Echinoderms (1893) by William Saville-Kent, from The Great Barrier Reef of Australia.
Source: RawPixel / Biodiversity Heritage Library
Available to buy as a print.
https://pdimagearchive.org/images/5d14f28e-79f6-4809-9d38-36012f90dd9c
#biodiversity #fish #invertebrates #echinoderms #australia #corals #art #publicdomain
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Here is a "plumbing" diagram of a typical #starfish #locomotion system from: https://labellocation.blogspot.com/2023/04/40-starfish-anatomy-labeled.html
Alt: diagram showing water taken in on top, routed thru a circular tube, and delivered to the hydraulic feetAmazing! #Nature #Echinoderms
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Here is a "plumbing" diagram of a typical #starfish #locomotion system from: https://labellocation.blogspot.com/2023/04/40-starfish-anatomy-labeled.html
Alt: diagram showing water taken in on top, routed thru a circular tube, and delivered to the hydraulic feetAmazing! #Nature #Echinoderms
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From Die Asteriden der Siboga-Expedition (1917).
Source: Smithsonian Libraries and Archives / Biodiversity Heritage LibraryInternet Archive
https://pdimagearchive.org/images/2571ad9f-7ade-48e2-a681-2da7c35c1cad
#collage #marine #biology #sea #oceans #starfish #echinoderms #art #publicdomain
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Starfish don't have hands but they got feet :)
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🧠🦔 Research from scientists in #Italy and #Germany shows sea urchins aren't "primitive" but have complex "all-body brain" nervous systems distributed throughout their #anatomy.
Analyses revealed hundreds of neuron types producing neurotransmitters like dopamine and serotonin, plus light-sensitive cells covering their bodies that function like distributed vision systems despite having no eyes.
👉 https://www.popularmechanics.com/science/animals/a69443677/all-brain-creature/
#neuroscience #marine #biology #brain #research #ocean #echinoderms #discovery
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🧠🦔 Research from scientists in #Italy and #Germany shows sea urchins aren't "primitive" but have complex "all-body brain" nervous systems distributed throughout their #anatomy.
Analyses revealed hundreds of neuron types producing neurotransmitters like dopamine and serotonin, plus light-sensitive cells covering their bodies that function like distributed vision systems despite having no eyes.
👉 https://www.popularmechanics.com/science/animals/a69443677/all-brain-creature/
#neuroscience #marine #biology #brain #research #ocean #echinoderms #discovery
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From Die Asteriden der Siboga-Expedition (1917).
Source: Smithsonian Libraries and Archives / Biodiversity Heritage LibraryInternet Archive
https://pdimagearchive.org/images/c73b6ba8-4c54-4564-bd29-ef1ca21a9d9a
#collage #marine #biology #sea #oceans #starfish #echinoderms #art #publicdomain
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Sea urchins - echinoderms
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #fish #ocean #sealife #marinelife #padi #reef #urchon #echinoderms -
Holothuroid - Sea cucumber
#gili #giliislands #lombok #diving #scuba #diveandstay #giliair #ocean #sealife #marinelife #padi #reef #echinoderms #holothuroid -
Luzon sea star - Echinaster luzonicus
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #fish #ocean #sealife #marinelife #padi #reef #seastar #echinoderms -
From Die Asteriden der Siboga-Expedition (1917).
Source: Smithsonian Libraries and Archives / Biodiversity Heritage LibraryInternet Archive
https://pdimagearchive.org/images/917f0e27-3097-46ac-855b-3e01070c1fe6
#collage #marine #biology #sea #oceans #starfish #echinoderms #art #publicdomain
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Bêche-De-Mer, Small Lolly-Fish / Bêche-De-Mer, Spotted-Fish / Teat-Fish (1893) by William Saville-Kent, from The Great Barrier Reef of Australia.
Source: RawPixel / Biodiversity Heritage Library
https://pdimagearchive.org/images/4f49651e-5049-49e6-a3fa-a62249cb53b8
#zoology #aquatic #fish #echinoderms #wildlife #australia #art #publicdomain
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Crinoid or feather stars
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #fish #ocean #sealife #marinelife #padi #reef #echinoderms #crinoid -
500-million-year-old #fossil reveals how #starfish got their shape https://phys.org/news/2025-06-million-year-fossil-reveals-starfish.html
A new #Cambrian stem-group echinoderm reveals the #evolution of the anteroposterior axis: Stephanie Woodgate et al. https://www.cell.com/current-biology/fulltext/S0960-9822(25)00681-5
"The fossil, #Atlascystis acantha, is the oldest known #echinoderm with a bilateral body plan. It bridges the evolutionary gap between the closest living relatives of #echinoderms, all of which have bilateral symmetry, and the familiar five-armed forms alive today."
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500-million-year-old #fossil reveals how #starfish got their shape https://phys.org/news/2025-06-million-year-fossil-reveals-starfish.html
A new #Cambrian stem-group echinoderm reveals the #evolution of the anteroposterior axis: Stephanie Woodgate et al. https://www.cell.com/current-biology/fulltext/S0960-9822(25)00681-5
"The fossil, #Atlascystis acantha, is the oldest known #echinoderm with a bilateral body plan. It bridges the evolutionary gap between the closest living relatives of #echinoderms, all of which have bilateral symmetry, and the familiar five-armed forms alive today."
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An orange Starfish an echinoderms
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #fish #ocean #sealife #marinelife #padi #reef #starfish #seastar #echinoderms -
An orange Starfish an echinoderms
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #fish #ocean #sealife #marinelife #padi #reef #starfish #seastar #echinoderms -
Holothuroid Dendrochirotida, a sea cucumber, the body is underground
#gili #giliislands #lombok #diving #scuba #trawangan #diveandstay #giliair #ocean #sealife #marinelife #seacucumber #reef #echinoderms -
Skin of a leopard sea cucumber
#gili #giliislands #lombok #diving #scuba #giliair #trawangan #holidays #sealife #marinelife #ocean #seacucumber #echinoderms -
Sea urchin, an echinoderm
#gili #giliislands #lombok #diving #scuba #giliair #trawangan #holidays #sealife #marinelife #seaurchin #urchin #padi #ocean #Indonésia #echinoderms -
Brittle stars or ophiuroids
#gili #giliislands #lombok #diving #scuba #gilitrawangan #pets #ocean #stars #ophiuroids #echinoderms #sealife #marinelife #indonesia -
Holothuroidea sea cucumber are echinoderms like starfish
#gili #giliislands #lombok #diving #scuba #giliair #gilitrawangan #pets #ocean #worm #cucumber #echinoderms #sealife #marinelife #indonesia -
Does anyone have a good reference for how #echinoderms resurface and/or recognize the #seafloor in their #habitat? It's something I've observed, but I can't seem to find any reference describing or quantifying it.
(I've looked at the bioturbation literature; it's not what I'm looking for) -
Zoology hot take:
Brittle stars are just starfish (sea stars) which have made their way through the Amigara Fault.
https://mediachomp.com/the-enigma-of-amigara-fault-manga/
#Biology #Zoology #Echinoderms #BodyHorror #Starfish #BrittleStars #JunjiIto #Manga #AmigaraFault #Humor #NotionalReality
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Fossil shows #starfish relative engaged in clonal fragmentation 150 million years ago https://phys.org/news/2024-05-fossil-germany-starfish-engaged-clonal.html
#Fossil evidence for the ancient link between clonal fragmentation, six-fold symmetry and an epizoic lifestyle in asterozoan #echinoderms https://royalsocietypublishing.org/doi/10.1098/rspb.2023.2832
"many species of #BrittleStars are capable of reproducing by splitting off parts of their body, both of which then regenerate, resulting in two distinct clonal creatures, a process known as clonal fragmentation"
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Holy Glowing #DeepSea Cucumbers! https://deepseanews.com/2024/01/holy-glowing-sea-cucumbers/
Glowing sea cucumbers: Bioluminescence in the Holothuroidea https://www.sciencedirect.com/science/article/abs/pii/B9780323953771000035
"In this #luminescent tapestry, #SeaCucumbers emerge as unexpected stars. While we might not associate these #echinoderms with #bioluminescence, they contribute significantly to the underwater light show... Venture to the depths of one kilometer, and you’ll find that luminous sea cucumbers constitute an astonishing 99% of all sea cucumbers."
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Arms of the Abyss https://deepseanews.com/2024/01/arms-of-the-abyss/
"#BasketStars, so named for the dizzying and multi-branching nature of their convoluted arms, often perch atop #coral or rocky formations. From this high mount, the #BasketStar can extends its arms in faster moving waters away from the seafloor to ensnare drifting #zooplankton for food. Its arms, equipped with tiny hooks and sticky mucus, capture prey that gets passed to its central mouth."
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Crinoids are fascinating.
They are marine animals that look a bit like exotic plants. We have some lovely ones today.
https://en.wikipedia.org/wiki/CrinoidFossil from an animal that lived more than 250 million years ago: https://en.wikipedia.org/wiki/Permian%E2%80%93Triassic_extinction_event#/media/File:Agaricocrinus_americanus_Carboniferous_Indiana.jpg
Image by Alexander Vasenin - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=24925765
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Bodiless Heads Crawling Around The Ocean
Starfish are brainless, bloodless, digest their food externally, and regenerate body parts.
Starfish and other echinoderms lack the architecture for an actual body.
They are essentially just mobile heads that sprouted the ability to crawl.
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Are the zoologists alright?
An often debated echinoderm topic. Where would a starfish wear pants?
https://www.youtube.com/watch?v=ZxfTkjkgZt0 -
Long presumed to have no heads at all, #starfish may be nothing but https://phys.org/news/2023-11-presumed-starfish.html
Molecular evidence of anteroposterior patterning in adult #echinoderms https://www.nature.com/articles/s41586-023-06669-2
"It's as if the #SeaStar is completely missing a trunk, and is best described as just a head crawling along the seafloor"
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Advanced imaging reveals the last bite of a 465-million-year-old trilobite https://phys.org/news/2023-09-advanced-imaging-reveals-million-year-old-trilobite.html
Uniquely preserved gut contents illuminate #trilobite #palaeophysiology https://www.nature.com/articles/s41586-023-06567-7
"The digestive tract of the trilobite #Bohemolichas incola was tightly packed with #calcareous #shells and their fragments that belonged to marine #invertebrates such as #ostracods, #bivalves and #echinoderms, some of them identifiable to the species level."
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A pyramid-shaped #SeaUrchin
Seascape #Alaska 5: Gulf of Alaska Remotely Operated Vehicle Exploration and Mapping
#NOAA #Okeanos is LIVE NOW: https://www.youtube.com/live/YgEl_fFt--Y?si=kKtDFXqJ2EUxOSOy
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Seascape #Alaska 5: Gulf of Alaska Remotely Operated Vehicle Exploration and Mapping
#NOAA #Okeanos is LIVE NOW: https://www.youtube.com/live/YgEl_fFt--Y?si=kKtDFXqJ2EUxOSOy
#DeepSea #ROV #ResearchVessel #Ocean #Animals #Invertebrates #Echinoderms