Science news article about 2nd year grad students being unceremoniously dropped from the GRFP eligibility with no explanation or warning: www.science.org/content/arti...

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

Drone observations reveal white shark (Carcharodon carcharias) dorsal fins are highly flexible and possible investigatory structures onlinelibrary.wiley.com/doi/10.1111/... 🧪🌎🦑🦈🐠

Aren't they lovely? Congratulations to my great colleague Bud Freeman, this is the culmination of over a decade of work! www.mapress.com/zt/article/v...

It’s a start, congrats to our Harvard colleagues! www.cnn.com/2025/09/03/p...

I'm aware that the President likes to go on television and beg me to call him to ask for troops. I find it strange, as Chicago doesn't want troops. I also have experience asking him for assistance – just to have the rug pulled up from underneath me when execution meets reality.

Excited to share the first paper from my PhD! We looked at what traits help Aneides salamanders excel at climbing using museum specimens, CT scans, SEM, and more! No claws or toe pads, so how do they do it? In short, with long limbs, big feet and grippy toes! 🦎🧪 DM for PDF doi.org/10.1098/rspb...

#OceanOptimism newsroom.wcs.org/News-Release...

Ever wonder how the axial locomotor system is arranged into segmented myomeres of red and white muscle in a large pelagic surgeonfish? Well, now you know! 🐟🧪🦑

I’m proud to announce my first first-author paper of my Ph.D! We described and modeled the muscle architecture of a pangolin’s tongue using DiceCT and 3D modeling approaches. Each model is available on the Holliday lab Sketchfab. academic.oup.com/icb/advance-... sketchfab.com/holliday/col...

Naso! Great genus of surgeonfishes, sporting the vicious cutting scalpel blades at the base of their tail. Here is a better color photo of that bignose where you can see the tail blades. 🐟🦑🧪🌎

Bignose Unicornfish! Yep, Naso vlamingii, a very nice specimen for our research, collected with permit. They have 2 wicked sharp scalpel blades on each side of their tail base, but are they venomous? We will know soon! 🐟🦑🌿🧪🌎

Acanthuriform fishes! Research goals on Moorea are focused on morphology and evolution of defensive spines and backbones of surgeonfishes, angelfishes, and butterflyfishes. We have a scientific permit to collect specimens, and here are 2 beauties, Acanthurus lineatus and Pygoplites diacanthus. 🐟🦑🧪

Local Moorea fish markets are interesting, with stringers hung (and often taxonomically sorted!) on the side of the road. Gotta get there early- these were mostly gone by about 5:30 am. Some good specimens for Linnea and Olivia’s research! 🐟🧪🦑🌎

The Red-Vented Bulbul stopped by my cottage on Moorea. You can just see his red ass! 🧪🌿🐦‍⬛

Shark’s Tooth Peak, the dramatic volcanic backdrop to our research on marine fishes here at the CRIOBE marine lab. 🧪🐟🦑

Doing some work at the CRIOBE marine lab on Moorea with some students. This place is fantastic, the staff are so great, efficient and helpful, and the access to the water is easy and fun. A few posts from Opunohu Bay to come!

Our new REU student Darla found something interesting in one of her CT scans! Looks like this fish was halfway through eating a big snail and some coral rubble when @mwestneat.bsky.social caught it last summer in Okinawa!

Pretty pleased with this mahi (Coryphaena hippurus) in the Keys today. What a great fish! This little one was released but we did get a couple that were keepers for dinner. #CatchAndRelease 🐟

New species of sucker just dropped👍 mapress.com/zt/article/v...

Hello ground hog, please stop digging under my deck? 😃 🦊 🌿 😎

Florida: 100% of the iconic Caribbean elkhorn coral died in Dry Tortugas National Park in 2023 due to global heating. link.springer.com/article/10.1...

SaveNSF is a coalition of concerned scientists and allies who are working to save funding for scientific grants through the NSF. The mission is to support and advocate for the continuation of vital research and innovation. Join: www.savensf.com

Coelacanths illuminate deep-time evolution of cranial musculature in jawed vertebrates. By Aléssio Datovo & G. David Johnson Sci. Adv. 2025 www.science.org/doi/10.1126/...

Woohoo! Another PhD candidate successfully presents their dissertation proposal! Olivia Guerra, working on backbone #biomechanics, #morphometrics and #evolution in the lab. Fishes, of course. 🐟🧪🌎🎣

Bowfin feeding mechanics! Check out our new paper on feeding mechanics in Amia ocellicauda using XROMM x-ray video technology. Led by Katie Whitlow #Biomechanics 🐟🧪🎣🌎 royalsocietypublishing.org/doi/10.1098/...

We are now inserting jaw genes from Epibulus insidiator into the wolf genome in order to create the Sling-Jaw Wolf, Canis insidiator

Oh damn, there is a new heptapterid catfish in the world too! 🐟🌿🌎🧪👍 bioone.org/journals/ich...

Sorry Shakespeare, new Hamlet just dropped! www.mapress.com/zt/article/v...

Scientists Record First Known Shark Sounds 🦑🧪🐟🦈 www.scientificamerican.com/article/scie...

With over 2.8 million anglers in the provinces and states surrounding the Great Lakes, we know how important the water is to our fisheries. #WorldWaterDay

Crystal caves! with Jamaican fruit eating bats, cute, brown and upside down. Grand Cayman Island. 🌎🦊🌿🧪

The beautiful Centropyge nahackyi is a very rare angelfish found only on deep reefs of Johnston Atoll and occasionally Hawaii. When I went to Johnston back in 2006 they were quite common below 35m depth, and, unlike other pygmy angelfishes, surprisingly easy to photograph!

Blue iguana! The endangered and really quite blue native iguanas (Cyclura lewisi) of Grand Cayman are amazing. Great #conservation and recovery story. 🌎🧪🦎

Hey Bluesky! @sicb.bsky.social 's Divisions of Comparative Biomechanics and Vertebrate Morphology are here! We're here to share any position opportunities and keep you updated on DCB and DVM activities. Give us a follow and feel free to send any postings our way.

Wake up y’all, Barbodes klapanunggalensis just dropped. 🐟🌎🧪🎣 zookeys.pensoft.net/article/1359...

Wow, a new species of redhorse just dropped. What a great fish! 🐟🌎🧪🌿🎣 bioone.org/journals/ich...

We've got a good one for you today! This is the skull of an Indo-Pacific Blue Marlin that we caught in Okinawa. This particular fish is special because it is both the largest fish that I've ever collected, and ever scanned. S/O to @jaimiagray.bsky.social for helping out with the scan!

OMG A new loach too! It’s a new fish blizzard. 🐟🌎🧪🌿 𝐻𝑜𝑚𝑎𝑡𝑢𝑙𝑎 𝑔𝑒𝑙𝑎𝑜, a new nemacheiline species of loach from the upper Yangtze River basin in Guizhou Province, southwestern China. zse.pensoft.net/article/1419...

It’s like, raining fish species. New sardine just dropped. 🐟🦑🌎🧪 A New Species of Rainbow Sardine in the Genus Dussumieria (Teleostei: Clupeiformes: Dussumieriidae) from New Guinea and Australia www.ichthyologyandherpetology.org/ihbjbe/lhi20...

New tilefish just dropped! 🐟🦑🌎🧪 novataxa.blogspot.com/2025/02/bran...

Not sure if this is really “breaking” news, or will turn out to be true, but it is a positive headline. Your move NSF! popular.info/p/breaking-n...

The scientific name of swordfish, Xiphias gladius, means “sword sword.” That’s a thing you know now.

This is my first every pre-print! Yes I am late to the party - but happy to make this entrance. Congrats to all my co-authors on their lovely work. www.biorxiv.org/content/10.1...

Ted Cruz "investigated" NSF and released a database of over 3,400 grants that promoted "Diversity, Equity, and Inclusion (DEI) or advanced neo-Marxist class warfare propaganda." 110 of the grants listed are funded through IOS or DEB programs. www.commerce.senate.gov/2025/2/cruz-...

Well, we might get 1-3” of snow here in #Chicago and school is already canceled. Used to take a frikkin blizzard to cancel school! But yeah we all need a Wed snow day 😎

WE DID IT! 12 years in a row of sharks in a Super Bowl commercial!

Why am I working harder than usual to get the next set of papers on #phylogenetics and #biomechanics completed and published? I have 3 proposals sitting at NSF, probably all dead in the water. I guess it’s just manic conflict avoidance, gonna keep on keepin on.

In other news, the labradoodle has had a nice trim.

We are fortunate that we have a rich teaching natural history collection at UChicago, built by folks like Len Radinsky and Jim Hopson, and now by myself and Paul Sereno. Great resource for our students. Here is a nice loggerhead sea turtle skull, obtained back in the 70s by Radinsky I believe. 🦑🧪🌎