Mastodawn

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 🌿

Public Domain Image Archive Mar 1

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

Public Domain Image Archive Feb 23

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

Public Domain Image Archive Dec 25

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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Richard Rathe Dec 25

@PhoenixSerenity

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 feet

Amazing! #Nature #Echinoderms

Public Domain Image Archive Dec 11

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

RAPIDPUNCHES Dec 9

Starfish don't have hands but they got feet :)

#echinoderms #seastars #MastoArt

TKSST / seethis.tv 🌈🪐✨Nov 24

🧠🦔 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

Scientists Thought This Creature Had No Brain. Turns Out It’s All Brain.

The entire body of a sea urchin is what researchers are now calling an “all-body brain,” with neurons that function as a brain throughout its anatomy.

Popular Mechanics

Public Domain Image Archive Nov 21

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