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echinoblog.bsky.social
Chris Mah
@echinoblog.bsky.social
4.7K followers 780 following 2.9K posts
The "starfish guy" (but I also know a little about a lot of marine invertebrates, #echinoday #echinoderms. Kaiju, comics enthusiast. Marine scientist, taxonomist, deep-sea researcher etc... statements made here are my own and do not rep host organizations
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echinoblog.bsky.social
Chris Mah @echinoblog.bsky.social · Nov 17
A recent account of my research in the NYT! by @megadarren.bsky.social ! #echinoday www.nytimes.com/2023/08/04/s...
New Antarctic Starfish Are Doting Parents and Vicious Predators (Published 2023)
A close examination of a collection of starfish in the Smithsonian revealed even more starfish inside those starfish.
www.nytimes.com
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echinoblog.bsky.social
Chris Mah @echinoblog.bsky.social · 13h
oh wow! I hope they collected some!
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tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 13h
There are plenty to choose from!
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echinoblog.bsky.social
Chris Mah @echinoblog.bsky.social · 13h
Video of DEEPEST TRENCHES between 7000 and 10000 m JAPAN! #deepsea youtu.be/Ggjg3nwfwSw?...
What lives at the bottom of Japan's deepest trenches?
YouTube video by The University of Western Australia
youtu.be
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tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 17h
Brittle star vs squid
youtu.be/oHN4sWAuBVc?...
Brutal Brittle Stars
YouTube video by oceanexplorergov
youtu.be
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echinoblog.bsky.social
Chris Mah @echinoblog.bsky.social · 13h
oh interesting. They all have 7 arms! Def. different from anything we've seen before.
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tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 17h
Those looks like the kind of brittle stars that like to catch squids! If you haven't seen that video I will put it 👇
Hermit 🦀 hanging out with scary brittle stars. @schmidtocean.bsky.social dive 855 #taleof2canyons #MarineLife
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Reposted by Chris Mah
tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 16h
Yep, I love that. Shallow jellies aren't my jam, so I'm just guessing here: Cyanea capillata? @schmidtocean.bsky.social dive 855 #taleof2canyons #MarineLife
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Reposted by Chris Mah
emilyart.bsky.social
Emily Stepp @emilyart.bsky.social · 1d
#Paleoctober2025 day 9 paleoart sketch of the ancient mollusk Protobalanus spinicoronatus.

#Paleoctober #Paleoart #Mollusk #Protobalanusspinicoronatus
The spiked mollusk on the ocean floor with large grains of sand surrounding it.
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zoesstudio.bsky.social
Zoë’s Studio @zoesstudio.bsky.social · 18h
Day 11 of #inktober - the prompt is sting
Quick sketch of jellyfish

#inktober2025 #inktober2025sting #sketch #sketchbook #draw #drawdaily #art #inkdrawing #dailydrawing #dailydrawchallenge #dailysketch
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livestreamocean.bsky.social
Livestream Oceanographic @livestreamocean.bsky.social · 18h
@schmidtocean.bsky.social has put ROV SuBastian in the water for dive 856! #taleof2canyons #MarineLife
www.youtube.com/live/1qB5nqG...
Head of canyon B, South Area - Northern wall | SOI Divestream 856
YouTube video by Schmidt Ocean
www.youtube.com
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cormacscoast.bsky.social
Cormac MacFhionnlaoich @cormacscoast.bsky.social · 1d
Looks like he's spotted something worrying creeping up behind me 😯🤣🤣

Goniatite fossils in a shale pebble.
County Clare, Ireland.
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Reposted by Chris Mah
biodiversitypix.bsky.social
Biodiversity Pics @biodiversitypix.bsky.social · 1d
🐚 Spécies général et iconographie des coquilles vivantes
Paris: Chez Rousseau: [1834-1880]

[Source]
Illustration from a historical 19th-century book showing four detailed, hand-colored drawings of Pyrula shells. Two shells, labeled 1 and 2, are shown from a side profile and a front angle, featuring elongated, spiraled forms with prominent ridges and variegated brown, beige, and cream bands. The shells display a textured surface with natural shading highlighting their ribbed structure and flared openings. Text on the page includes the title "Pyrule (Pyrula)" and scientific names "Pyrula sinistrale" and "Pyrula perversa Lam." The style reflects precise scientific illustration typical of natural history works from 1834-1880.
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tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 1d
Munnopsid isopod! I love these little critters. @nautiluslive.org #CookIslands #MarineLife
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studio-mbj.bsky.social
Meghan Jones @studio-mbj.bsky.social · 1d
Working away on this #deepsea carnivorous sponge, crinoid and brittle star painting. It’s getting there, probably 75% done now, adding all the details and rainbow colors is my fav part! #deepseacreatures #coldwatersponges 🐡🦑 #invertebrates #acrylicpainting #marinebiology #art #painting #artist
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tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 1d
I thought it was a sponge from a distance, and then it took a dump! Super cool sea cucumber @nautiluslive.org #CookIslands #MarineLife
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t-lindsay-sci.bsky.social
Taylor Lindsay @t-lindsay-sci.bsky.social · 1d
🌊 Phylum Friday - Arthropoda! 🌊

This week’s pinchy pals are among the most diverse and most abundant group of organisms in the world! There are upwards of 70,000 species of crustaceans ranging from microscopic copepods to deep sea crabs to tropical shrimps to intertidal barnacles!
Close up shot of crab eyes Microscope image of larval crab Crab on red algae Hand holding a lobster who has his hands in the air like he just don’t care
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tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 1d
Enypniastes swimming about. Great look at the face fingers! @nautiluslive.org #CookIslands #MarineLife
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bbkogan.bsky.social
Bobby Kogan @bbkogan.bsky.social · 1d
Three key points:
1) The admin has been planning mass firings to begin in October since February
2) The work necessary to carry out mass firings is illegal during a shutdown, violating the Antideficiency Act, which carries a criminal penalty
3) This harms America, ridding us of talent and expertise
Russ Vought v @russvought The RIFs have begun. 12:27 PM • 10/10/25 • 15K Views
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squamiferum.bsky.social
C. Chen @ Jamsteeeec @squamiferum.bsky.social · 1d
[New Paper] names Chaetoderma naga, a gigantic (>13 cm) new worm-mollusc from a cold seep! Like its sister-species C. shenloong, it probably relies on endosymbiotic bacteria for energy. We named it after Nāga, a snake-god from Asian mythologies!

Out now in Moll. Res., LINK: doi.org/10.1080/1323...
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inaturalist.bsky.social
iNaturalist @inaturalist.bsky.social · 1d
In today's episode of otherworldly fungi: a close look at Polycephalomyces tomentosus! It's growing right alongside what's likely a species of slime mold.

📷 tannarc on iNaturalist
📍 Australia
🔗: www.inaturalist.org/observations...
#ObservationOfTheDay
A yellowish-brown fungus with translucent bluish appendages on it grows out of the substrate. A yellowish-brown fungus with translucent bluish appendages on it grows out of the substrate. A yellowish-brown fungus with translucent bluish appendages on it grows out of the substrate.
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tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 1d
Benthic siphonophore, coral polyps, unsure about the 3rd one, snail. @nautiluslive.org #CookIslands #MarineLife
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mush-photos.bsky.social
Chelton's Mushroom Photography @mush-photos.bsky.social · 1d
Russula rhodocephala, the Redhead Russula, is likely what this is. There are so many Russula species. I'm almost never 100% sure!

📷 Canon R5
Canon RF 100mm f/2.8L IS USM
M, f/5.6, 1/2, ISO 400
Stack of 27 images
9/2/24
Northern Oregon Coast

#mushroom #fungifriends #mushrooms

🍄📷 📸🎞 🌿🌱 🟢 🍄 🍄‍🟫
A large and beautiful pinkish-red mushroom grows out of a thick bed of pine needles. Its stipe and cap are the same pretty color. The gills are slightly separated and appear almost page-like, which is common for Russula species, as far as I've observed.
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tuexplorer1.bsky.social
Lisa @tuexplorer1.bsky.social · 2d
This one looks more like benthodytes than Enypniastes to me. 4290m(sh) @nautiluslive.org #CookIslands #MarineLife
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jdcmedlock.bsky.social
James Medlock @jdcmedlock.bsky.social · 2d
“I’ll declare war on you if you don’t give me the peace prize” is an incredible bit
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biodivlibrary.bsky.social
Biodiversity Heritage Library @biodivlibrary.bsky.social · 2d
It's #NautilusNight!⁣ The common name "paper nautilus" for the genus Argonauta comes from the Greek ναυτίλος nautílos, meaning "sailor". People once believed these octopuses used two of their arms as sails, as seen in this #SciArt from "Zoography" (1807) www.biodiversitylibrary.org/page/54312693 🧪
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