Jo Wolfe, PhD
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jopabinia.bsky.social
Jo Wolfe, PhD
@jopabinia.bsky.social
Why things evolve into crabs. Evolutionary biologist (species alive today AND fossils, and how to study them together). Canadian at UCSB and Harvard (she/her)

My science: https://scholar.google.com/citations?user=CKqoVjEAAAAJ&hl=en
Pinned
Our paper on convergent evolution of land crabs is out in its final final form. The journal didn't pick my image as the cover, so I'm sharing it here because it must be seen!

academic.oup.com/sysbio/artic...

🦀🦑🧪
Deep-Sea-cember: The reason for the season is to be cozy at home 🦐🧽
#deepseadecember #deepseacember #deepsea #glasssponge #shrimp #venusflowerbasket #art #cozy
December 7, 2025 at 3:36 AM
Reposted by Jo Wolfe, PhD
You beautiful, slinky worm, you! A Xenacoela - I don’t know much about these guys, but I think this one is gorgeous! Thanks @microbe_guru for the ID.
#marineplankton 🦑
December 6, 2025 at 10:28 PM
Reposted by Jo Wolfe, PhD
36 years ago today, 14 women, most of whom were studying engineering, were killed by an anti-feminist gun man at École Polytechnique in Montreal. I was a young graduate student studying physics at the time and I will never forget. #MontrealMassacre #NeverForget 🧪 👩‍🔬 ⚛️ 🎢 #AcademicSky 🇨🇦
December 6, 2025 at 7:02 PM
Reposted by Jo Wolfe, PhD
Today is Canada's National Day of Action & Remembrance on Violence against Women. It marks the day in 1989 when 14 women at Polytechnique in Montreal were murdered by an "incel" (Proving that shit has a new name but is an old problem.)

There are vigils across the country today. Please attend one.
December 6, 2025 at 2:52 PM
Reposted by Jo Wolfe, PhD
In remembrance

#Montreal to honour 14 victims of Polytechnique massacre at ceremony #Dec61989

Representatives from all 3 levels of government expected to be in attendance

www.cbc.ca/news/canada/...
Montreal to honour 14 victims of Polytechnique massacre at ceremony | CBC News
A total of 14 women were murdered in the mass shooting on Dec. 6, 1989. Thirteen others were injured in the attack.
www.cbc.ca
December 6, 2025 at 1:18 PM
Reposted by Jo Wolfe, PhD
Porcelain crab on an anemone

#photo #photography #scuba #dive #crab #crustmas
December 6, 2025 at 8:10 PM
Reposted by Jo Wolfe, PhD
Rehderella belyaevi - unusual fused opercular plates, cobalt mantle tissue, likely a cryptic barnacle species opportunity for #crustmas academic.oup.com/jcb/article-...
December 6, 2025 at 8:24 PM
That's what the #Crustmas hashtag was born for

And the crab feed in general
bsky.app/profile/did:...
I have a neighbor who only has one Christmas decoration in their yard and it’s this. It’s all of like three feet tall and I am delighted every time I see it.

Crab is the true reason for the season.
December 6, 2025 at 9:26 PM
Land Daphnia like crustaceans just like how there's land ostracods, land crabs, land isopods, and obviously insects #Crustmas
"The Non-swimming Chydorid Cladocera of Wet Forests, with
Descriptions of a New Genus and Two New Species" Frey 1980. what do you mean they just ooze around the world
December 6, 2025 at 9:23 PM
Reposted by Jo Wolfe, PhD
PSA: Kīlauea here in Hawaiʻi is doing its thing and you want to see it.
[V3cam] Kīlauea volcano, Hawaii (south Halemaʻumaʻu crater)
YouTube video by USGS
www.youtube.com
December 6, 2025 at 7:27 PM
Reposted by Jo Wolfe, PhD
Deep sea mining is very bad for deep sea ecosystems.
What Scientists Found When a Deep Sea Mining Company Invited Them In
www.nytimes.com
December 6, 2025 at 6:26 PM
Reposted by Jo Wolfe, PhD
Is #SeastarSaturday a thing? 🌊⭐️ After losing so many of these important predators along the west coast of North America a decade ago, seeing their return to our rocky shores always makes me happy. 🤩 #MarineLife #Invertebrate 🦑
December 6, 2025 at 6:52 PM
Reposted by Jo Wolfe, PhD
Years ago during EX1706 #Okeanos on my tour as Biolead while we were parked in Honolulu harbor, I spied these cute little grapsid craps while were docked! Not sure which one, Grapsus? #crustmas
December 6, 2025 at 6:26 PM
Reposted by Jo Wolfe, PhD
Happy #crustmas Saturday
Wood louse - order: Isopoda
(Shot near Cincinnati 4-13-24) 🪲🪳🦀 #photography #macrophotography #wildlifephotography #wildlife #nature #animal #invertebrate #crustacean #isopod #bugsky
December 6, 2025 at 6:17 PM
Reposted by Jo Wolfe, PhD
This looks like Carcinus maenas or similar, yes close enough to a real species (in shape, obviously not color!) #Crustmas

I like the detail of the artist reflected in the carapace
Nice looking crab graffiti found in the old Las Peñas neighborhood, Guayaquil, Ecuador. @jopabinia.bsky.social might tell us if it is ok or if it is just a wild dream.
December 6, 2025 at 4:21 PM
Reposted by Jo Wolfe, PhD
Salps + passengers, from a blackwater dive in Balayan Bay, Anilao. Not sure what the hitch-hikers are (amphipods?) but I think they qualify for #Crustmas

#MarineLife #Invertebrates 🌿
December 6, 2025 at 4:33 PM
Reposted by Jo Wolfe, PhD
Further Calappa #Crustmas action

bsky.app/profile/xeno...
Box crab (Calappa bicornis, I think), Lembeh

#MarineLife 🦀 #Invertebrate
December 6, 2025 at 5:24 PM
Reposted by Jo Wolfe, PhD
Good morning butterflies! I hear you like #Crustmas, so we put barnacles on your barnacles so you can host more epibionts while you epibiont.
December 6, 2025 at 2:28 PM
Reposted by Jo Wolfe, PhD
🎶On the 6th day of #Crustmas my true love gave to me.. a black crab near the blue sea 🎶 🦀🦑

#nature #maui #christmas #crustacean #crab #love #black #smallwonders #cool #goodmorning #aloha #christmas #nokings
December 6, 2025 at 3:33 PM
Reposted by Jo Wolfe, PhD
A #Crustmas repost
For whatever day of #crustmas we're on now... a very cooperative and tolerant peacock mantis shrimp posing for a photo in Lembeh.

#MarineLife #invertebrate 🌊
December 6, 2025 at 3:47 PM
This looks like Carcinus maenas or similar, yes close enough to a real species (in shape, obviously not color!) #Crustmas

I like the detail of the artist reflected in the carapace
Nice looking crab graffiti found in the old Las Peñas neighborhood, Guayaquil, Ecuador. @jopabinia.bsky.social might tell us if it is ok or if it is just a wild dream.
December 6, 2025 at 4:21 PM
#Crustmas although maybe professorial crayfish is...me? 🤔
Zarigani Hakase, a professorial crayfish, and Funadon, a guileless carp, are local characters from Hanyu City.
December 6, 2025 at 3:37 PM
Reposted by Jo Wolfe, PhD
The First Butterfly
#art #illustration
December 6, 2025 at 12:52 PM
Reposted by Jo Wolfe, PhD
#PudgyHorse Lascaux Tribute 2. A companion piece to the first, following one of the other cave horses with a darker colour morph. Again, painted with pigments made by Mary Sanche from Cretaceous rocks from the Albertan badlands. From 2020.

#ArtAdventCalendar
December 6, 2025 at 3:26 AM
10/10 would recommend bringing a dark UV light nighttime tidepooling

🌿🐙🦑🦀
December 6, 2025 at 2:00 PM