#vertebrates — Public Fediverse posts

🐟🧪 Biologists from #Acadia University and the University of #BritishColumbia studied how #psilocybin affects the behavior of the aggressive mangrove rivulus #fish.

#Data indicated that the compound reduces territorial displays while allowing normal social interactions to continue. The findings suggest that the psychoactive ingredient in magic #mushrooms can dampen social conflict in #vertebrates.

👉 https://www.popsci.com/science/magic-mushrooms-fish/

#science #biology #nature #neuroscience #research #wildlife #ocean #ecology #animals

Human Eyes Evolved from a Single Median Eye of a 600-Million-Year-Old Ancestor

📰 Original title: The shocking origin of human eyes traces back to an ancient “cyclops”

🤖 IA: It's clickbait ⚠️
👥 Usuarios: It's clickbait ⚠️

View full AI summary: https://killbait.com/en/human-eyes-evolved-from-a-single-median-eye-of-a-600-million-year-old-ancestor/?redirpost=a4a3ce91-a4b1-4056-976f-0478e229d623

#science #evolution #eyes #vertebrates

#Regeneration of fins and limbs relies on shared cellular playbook
Immune cells, blood and repair #genes act in concert across three regenerating #vertebrates
Team cut fins off #bichirs and tracked #gene activity at wound after one, three and seven days, which revealed types of cells present and activity. Team compared data to similar new and existing data about #axolotl, salamander that regrows limbs, and #zebrafish, a that can regrow tips of fins
https://www.sciencenews.org/article/regeneration-of-fins-and-limbs-relies-on-a-shared-cellular-playbook
https://archive.ph/l7NI2

Four-limbed #vertebrates, known as tetrapods, have two enlarged areas in their spinal cords. The two enlargements have a correlation with the forelimbs and hind limbs, respectively. These enlargements are thought to be caused by the complex muscular system and the rich sensory networks supplying #nerves to the limbs.
#Neuroscience #EvolutionaryBiology #sflorg
https://www.sflorg.com/2025/10/ns10082502.html

We probably inherited our #joints from… a #fish
#Cartilaginous fish form the same style of joint that we do, while jawless fish don't.
Humans, other land #vertebrates, and jawed fish have #synovial joints. The lubricated cavity within these joints makes them more mobile and stable because it allows for bones or cartilage to slide against each other without friction, which facilitates movement.
https://arstechnica.com/science/2025/03/we-probably-inherited-our-joints-from-a-fish/

Is The Flea Toad The Smallest Vertebrate In The World?

"Is there a lower limit on vertebrate body size? How small can a vertebrate possibly get?"

by @GrrlScientist via #Substack

#Amphibians🐸 #BodySize #Vertebrates #evolution #SciComm🧪 https://grrlscientist.substack.com/p/is-the-flea-toad-the-smallest-vertebrate-67c

Is The Flea Toad The Smallest Vertebrate In The World?

"Is there a lower limit on vertebrate body size? How small can a vertebrate possibly get?"

by @grrlscientist via #Substack

#Amphibians🐸 #BodySize #Vertebrates #evolution #SciComm🧪 https://grrlscientist.substack.com/p/is-the-flea-toad-the-smallest-vertebrate-67c

How Small Can You Get? Another New-To-Science Flea-Toad Wows Scientists, out of Biology Institute of the University of Campinas, published by PeerJ

by @grrlscientist

#amphibians🐸 #herpetology #vertebrates #BodySize #SciComm🧪 https://www.forbes.com/sites/grrlscientist/2024/11/01/how-small-can-you-get-another-new-to-science-flea-toad-wows-scientists/

How Small Can You Get? Another New-To-Science Flea-Toad Wows Scientists, out of Biology Institute of the University of Campinas, published by PeerJ

by @GrrlScientist

#amphibians🐸 #herpetology #vertebrates #BodySize #SciComm🧪 https://www.forbes.com/sites/grrlscientist/2024/11/01/how-small-can-you-get-another-new-to-science-flea-toad-wows-scientists/

Scientists find new #epigenetic switch: #5formylcytosine activates genes in the embryonic development of #vertebrates // #epigenetics #DevelopmentalBiology #genetics #GeneRegulation #MolecularBiology #LifeSciences #biology @imbmainz @uni_mainz_eng
https://nachrichten.idw-online.de/2024/09/18/scientists-find-new-epigenetic-switch

Yun Choi, an artwork from the series “Self-Renewal of Vertebrates”, 2018 ★ S. Korea ★ http://yunyunchoi.com/index.php/18/---self-renewal-of-vertebrates/ #YunChoi #contemporarysculpture #mixedmedia #biomorphic #biomorphism #vertebrata #vertebrates #selfrenewal #selfprocessing #2010s

#African #FossilFriday

Many of the oldest #fossils from the countries of the #Zambezi Basin come from #Namibia 🇳🇦, so we're returning there this week to meet the #Carboniferous #fish Namaichthys schroederi. It was an early member of a group with a bright future: the #Actinopterygii, or ray-finned #fishes, which, since Namaichthys swam the #Namibian seas 300 million years, has #evolved into by far the most diverse group of #vertebrates.

Figures from Gardiner 1962

https://www.palass.org/sites/default/files/media/publications/palaeontology/volume_5/vol5_part1_pp9-21.pdf

#Snakes and #mice don’t look alike. But much of what we know about skin #coloration and patterning in #vertebrates generally, including in snakes, is based on lab mice.
#Biology #sflorg
https://www.sflorg.com/2023/02/bio02052304.html

It’s well understood that #overgrazing by #herbivores like #kangaroos can change #ecosystems dramatically, but the impact excessive grazing has on the cover of dead vegetation – and cascading effects on small #vertebrates like #lizards, #desert #frogs and #dunnarts
#Conservation #EarthScience #Environmental #sflorg
https://www.sflorg.com/2023/01/con01302301.html