home.social

#echinoderms — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #echinoderms, aggregated by home.social.

  1. 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 🌿

  2. 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.

    pdimagearchive.org/images/5d14

    #biodiversity #fish #invertebrates #echinoderms #australia #corals #art #publicdomain

  3. @PhoenixSerenity

    Here is a "plumbing" diagram of a typical #starfish #locomotion system from: labellocation.blogspot.com/202

    Alt: diagram showing water taken in on top, routed thru a circular tube, and delivered to the hydraulic feet

    Amazing! #Nature #Echinoderms

  4. 🧠🦔 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.

    👉 popularmechanics.com/science/a

    #neuroscience #marine #biology #brain #research #ocean #echinoderms #discovery

  5. 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

    pdimagearchive.org/images/4f49

    #zoology #aquatic #fish #echinoderms #wildlife #australia #art #publicdomain

  6. 500-million-year-old #fossil reveals how #starfish got their shape phys.org/news/2025-06-million-

    A new #Cambrian stem-group echinoderm reveals the #evolution of the anteroposterior axis: Stephanie Woodgate et al. cell.com/current-biology/fullt

    "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."

  7. 500-million-year-old #fossil reveals how #starfish got their shape phys.org/news/2025-06-million-

    A new #Cambrian stem-group echinoderm reveals the #evolution of the anteroposterior axis: Stephanie Woodgate et al. cell.com/current-biology/fullt

    "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."

  8. 500-million-year-old #fossil reveals how #starfish got their shape phys.org/news/2025-06-million-

    A new #Cambrian stem-group echinoderm reveals the #evolution of the anteroposterior axis: Stephanie Woodgate et al. cell.com/current-biology/fullt

    "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."

  9. 500-million-year-old #fossil reveals how #starfish got their shape phys.org/news/2025-06-million-

    A new #Cambrian stem-group echinoderm reveals the #evolution of the anteroposterior axis: Stephanie Woodgate et al. cell.com/current-biology/fullt

    "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."

  10. 500-million-year-old #fossil reveals how #starfish got their shape phys.org/news/2025-06-million-

    A new #Cambrian stem-group echinoderm reveals the #evolution of the anteroposterior axis: Stephanie Woodgate et al. cell.com/current-biology/fullt

    "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."

  11. 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)

  12. Fossil shows #starfish relative engaged in clonal fragmentation 150 million years ago phys.org/news/2024-05-fossil-g

    #Fossil evidence for the ancient link between clonal fragmentation, six-fold symmetry and an epizoic lifestyle in asterozoan #echinoderms royalsocietypublishing.org/doi

    "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"

  13. Holy Glowing #DeepSea Cucumbers! deepseanews.com/2024/01/holy-g

    Glowing sea cucumbers: Bioluminescence in the Holothuroidea sciencedirect.com/science/arti

    "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."

  14. Advanced imaging reveals the last bite of a 465-million-year-old trilobite phys.org/news/2023-09-advanced

    Uniquely preserved gut contents illuminate #trilobite #palaeophysiology nature.com/articles/s41586-023

    "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."

  15. Hiya Mastodon,

    Re- #Introduction time! I'm Ash, a stop motion animator of wildlife and paleontologist.

    In the last year I moved from Australia to France and to Mastodon from my ex Twitter handle @aela_wild.

    With the move I renamed my business to StudioWild. So far it's a better fit :)

    Now that I'm set up, I post about natural history and share my mixed media art. I'm looking forward to getting to know my new landscape and all the weird wild animals and places in between.

    If you're inclined, my animations live on YouTube youtube.com/@studio_wild

    #geology #paleontology #naturalHistory #mushrooms #moss #reptiles #mammals #echinoderms #velvetWorms #oceans #crinoids #stromatolites #earlyEarth #forage #mushroom