Printing stamps!

Recent paper from our lab on the puncture performance of hemipene spines in snakes! Some are like cat claws, others barely puncture. A single species can have many different spine morphologies and thousands of spines! 🧪 🐍 royalsocietypublishing.org/doi/full/10....

🦀 Ever heard of a body-snatching barnacle? Meet Sacculina, the parasite that turns crabs into zombie parents. It takes over their bodies, shuts down reproduction, and even makes male crabs care for its eggs. Nature’s version of mind control is way creepier than fiction. 💀 #HappyHalloween

I love working at a museum because that means I get to create fantabulous SciComm activities 🐟🐡 Visitors will have the chance to match 3D printed living and extinct fish jaws to what they think the fish eats, based on jaw and tooth shape.

I was recently interviewed by @sciencenews.bsky.social about the discovery of new Antarctic #fish nesting in the fragile Weddell Sea in #antarctica. This time it was the yellow fin notie Nototheniops nudifrons nesting, likely in groups! 🧪 🌎 🇦🇶 🐟 🧊 www.sciencenews.org/article/anta...

Congrats @danielgeldof.bsky.social on defending your Master's today. It's been wonderful having a CT expert and poacher enthusiast in the lab. Well done.

Interested in automated length and morphological measurements? Check out our new app and preprint! 🧪🐟🦑 ecoevorxiv.org/repository/v...

New Collection Study Grants for students and postdocs to come visit the @burkemuseum.bsky.social! Applications due 12/15/25. www.burkemuseum.org/collections-...

Why are some species smaller than a paperclip while others grow longer than a school bus? How is body size evolution governed in animals? Out now in @pnas.org we tackle these longstanding questions through a genetic lens using my favorite group of fishes as our model!! www.pnas.org/doi/10.1073/...

👻 G-g-ghost? Nope, s-s-snailfish! 🤍 Meet the mesmerizing new addition to our Into the Deep/En lo Profundo exhibit, rough snailfish! These ethereal charmers live in the benthic zone, a scientific term for the seafloor.

Bellator militaris — the horned searobin. Just like other armored searobins, they possess modified pectoral fin rays used to walk and detect food on the seafloor. This specimen is TCWC 6818.17 available on MorphoSource. www.morphosource.org/concern/biol... 🦑 🌊 🧪

Phylogenetic relationships and the evolution of fin and body shape in the surgeonfishes https://www.biorxiv.org/content/10.1101/2025.10.09.680739v1

Ana amazing beach seining crew caught lots of critters. Spiny lump suckers, silver spotted sculpins, 2 species of surface, pipefish and many more!

The Royal Ontario Museum @romtoronto.bsky.social is delighted to seek a new Curator of Birds. With more than 200,000 specimens, including the world’s largest collection of bird skeletons, ROM's bird collection is the largest in Canada and one of the world's largest.

Job Alert! Assistant Prof of Fish Ecology at @wfcbucdavis.bsky.social, with a focus on freshwater and anadromous coldwater fishes. This is a wonderful and supportive place to work. Please share with your fishy friends! recruit.ucdavis.edu/JPF07351

Super excited to be advertising a #PhD position on how #marine #biodiversity affects #ecosystem functioning in the #Arctic at Aarhus uni . Pls apply and repost. I am looking forward to working with you.🧪🦑🦀🌍 phd.nat.au.dk/for-applican...

Amazing that a 'tongue bite' evolved in ray-finned fishes as early as the Mississippian! Also I need this exact paper for a Triassic project in the works, couldn't have come out at a better time. From Giles, Kolmann, and Friedman (2025). royalsocietypublishing.org/doi/10.1098/...

Hey, you! Do you know any teachers, librarians, scout troop leaders, or other k-12 educators? Please send them this picture & link www.skypeascientist.com/sign-up.html For what Skype a Scientist lacks in advertising budget we make up for in program value. We're GLOBAL so this applies to all 😘

New paper alert!!!🚨 in our new study we find that Antarctic icefishes added a new module in their skulls during their adaptive radiation special shout out to @mayaranevesbio.bsky.social who led this project! www.pnas.org/doi/10.1073/...

A little nest building River Chub for Rene ;) #SundayFishSketch 🐡

If it fits, I sits. Despite an entire empty parking lot on the right & taxpayer subsidized (free) street parking on the left. Seems like the only thing that reliably keeps divers out of bikelanes is making the bikeways sidewalk level. Not foolproof, but way better.

Check out this awesome video summary of a recent paper on endothermy in fishes from my former lab mate Fernando Melendez! www.youtube.com/watch?v=2Qnw...

Hoplostethus mediterraneus – the Mediterranean slimehead (Trachichthyidae). Remarkably, slimeheads have been documented to live for over 230 years. This specimen is KU 42748 from the KU Biodiversity Institute and Natural History Museum. 🦑🌊

To all my scientist friends - I highly recommend signing up for the @skypeascientist.bsky.social program! They connect scientists to classrooms across the US and beyond. Now, more than ever, it is critical to convey the importance of science and powerful for students to get to know a scientist.

Join us! We are hiring a new #curator at the #AMNH in #Vertebrate #Zoology careers.amnh.org/postings/4600 #academicjobs #tenuretrack

Please help me get a job in a different country

Bumping to the Fishes! and Science feeds🐟🧪

Welp here we are again, fresh out of Archaeologists for Skype a Scientist matches. This fall, we have matched 248 groups with Archaeologists for online Q&As. I have 38 more groups who need a match, but I'm out of Archaeologists! Archaeologists! Please volunteer www.skypeascientist.com/sign-up.html

IOB - out now! Twist and Snout: Head and Body #Morphologies Determine Feeding #Kinematics in Substrate-Biting #Fishes Tal Perevolotsky, Jacob M Brotman-Krass, Yarden Ratner, Yael Avigad, @fishguy.bsky.social , @cmdonatelli.bsky.social , Roi Holzman doi.org/10.1093/iob/... #morphology #science

I made a repository for some of the functions I've written for manipulating/handling phylo objects in R. Maybe they'll be useful to someone, but mostly it was a good excuse to start actually using git. github.com/miltontan/RP...

📯Collection manager position in the Natural History Museum of Basel 🇨🇭 Collection: "invertebrate" fossils Location: maps.app.goo.gl/Svd1o2M333av... Workload: 70% of full-time Description and application page: stellenmarkt.bs.ch/kbs/job/deta...

Undergraduate and graduate students can get $1500 ($2000 for international students) to visit and study in our museum collections. Contact a curator to discuss plans first to make sure we have what you need (that would be @planet-of-fishes.bsky.social for the Ichthyology Department). Come to LA!

Attention students: the deadline for our fall collections study award coming up soon! Use the funds to come out and use our LACM specimens for your research.

In which I beg archaeologists to sign up for the fall semester of Skype a Scientist, because we're getting buried in requests for your area of expertise. Sign up here: docs.google.com/forms/d/e/1F...

The Dept. of BioSciences at #RiceUniversity, in Houston, Texas, invites applications for a tenure-track assistant professor position in Evolutionary Biology, with a preferred focus on organismal responses to environmental change. Please RT! Apply: apply.interfolio.com/173889

Past is Prologue: CT scan models of a fossil (Eocoelopoma curvatum) and a living (Scomberomorus cavalla) scombrid fish separated by ~50 million years of evolution.

Do you like cichlids? Fossils? Fossil cichlids? Would you like to study them as part of a graduate degree at the University of Michigan, joining an NSF-funded project? Get in touch.

in PRIDE COLOURS even! 😹 (CT scan by @karlycohen.bsky.social / @ellanicklin.bsky.social )

I am recruiting a PhD student this application cycle to explore questions on the evolution of morphological variation and phylogenetics. I'm especially seeking folks interested in fossil marine inverts. Please reach out to me if interested! Portal opens Nov. 1 eeb.utoronto.ca/education/gr...

Amazing! Tufts will be free for undergraduate students whose families make less than $150k and have typical assets. 🏆 now.tufts.edu/2025/09/09/t...

🦐 High-res microCT of #Parhyale hawaiensis for #3DThursday! A powerful crustacean model for studying limb development, regeneration, and evo-devo. 🥼: Nipam Patel & Andrew Gillis, 2017 🏛️: University of Cambridge @cam.ac.uk 🎬: syGlass.io #Parhyale #MicroCT #DevBio #EvoDevo #ModelOrganisms #syGlass

New findings call into question one of the core assumptions about teeth. Adult male spotted ratfish have rows of teeth on top of their heads, in addition to those in their jaws. They use these teeth to grip females while mating. @karlycohen.bsky.social More: www.washington.edu/news/2025/09...

🐟🐠🧪 Happy to share our paper in Hormones and Behavior which is the first test of some of my predictions from the Ancestral Modulation Hypothesis. 🧵 on the findings in a biparental cichlid with plastic behaviors that are a form of cross-sexual transfer www.sciencedirect.com/science/arti...

Apply for the Scripps Postdoctoral Fellowship! I'm looking to support a strong candidate in fish physiology and/or biomechanics. Deadline: Oct 9, 2025. Eligibility: PhD by Nov 30, 2026 with ≤3 years postdoc experience. 2 years, $74K salary, $6K research allowance 👉 apol-recruit.ucsd.edu/JPF04348 🧪 🐟

Meet the newest species of Brazilian flea-toad 🐸 Brachycephalus nanicus! 🐸 B. nanicus is <1cm long & dwells under the leaf litter in the cloud forests of Serro do Mar, southeastern Brazil I CT scanned this specimen for the osteological description Out today in Zootaxa: mapress.com/zt/article/v...

IT'S ADORABLE! New fish species just dropped: the bumpy snailfish at 10,000 ft down in the ocean gift link: www.nytimes.com/2025/09/08/s...

I’ve said it once and I’ll say it again: The real villain in Jaws isn’t the shark, it’s a capitalistic mayor that values profit over people!

Coolest fish is a ratfish and they have teeth on the head for mating. @karlycohen.bsky.social's most recent with a great Ray Troll piece of art. 🧪🐡 www.washington.edu/news/2025/09...

Okay real talk y'all: what fellowships are out there for life sciences that we can have promising undergrads apply for who previously we would have encouraged go for a GRFP? I know nothing is the same re: scope, but what is out there?

New paper is officially out! Ratfish have a second jaw on their foreheads - CT + histology show they’re real teeth, built from the same tissues and signals as oral teeth. www.washington.edu/news/2025/09...