Modern #imagingtechnologies allow more #fluorescence insights in #vertebrates. B. Burriel-Carranza et al. (2026) show that the #granularglands and #epidermis of the #firesalamander produce different #fluorophores, and that such compounds also circulate via the #bloodstream. Fluorescence may have a #communicative function.

© #StefanFWirth

Reference
https://doi.org/10.1098/rsos.251991

#Figure
Potential #ecologicalrelevance of biofluorescence in S. salamandra, by the authors above http://creativecommons.org/licenses/by/4.0/

👁️🧬 A new #study proposes that #vertebrates’ unique #eyes evolved from a single median eye atop a #worm-like ancestor 600 million years ago.

That ancestor lost its side eyes while burrowing, then later repurposed its remaining third eye into our paired eyes. The pineal gland in your #brain is that original third eye, still regulating your #sleep from light signals.

👉 https://www.psypost.org/scientists-say-the-hidden-third-eye-inside-your-skull-is-the-bizarre-reason-you-can-see/

#evolution #science #biology #neuroscience #ancient #humans

🐟🧪 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

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

🪱🌊 New #research indicates that our eyes developed from a midline light-sensing organ in a primitive sea creature.

While our ancestors lost their original paired eyes while living as stationary filter feeders, the need for movement eventually triggered the #evolution of the complex retinas we use today. This process also led to the formation of the pineal gland, which regulates sleep cycles in modern #vertebrates.

👉 https://www.independent.co.uk/news/science/brain-eyesight-animals-worm-oceans-b2951015.html

#science #biology #nature #marinebiology #history #genetics #zoology #neuroscience #education