Caleb M. Gordon

Princeton paleontologist: Yes, tiny tyrannosaurs lived alongside T. rex By cutting into a tiny dinosaur throat bone, Princeton's Chris Griffin showed that it belonged to an adult of a smaller tyrannosauroid cousin, not a juvenile T. rex.

www.princeton.edu/news/2026/01...

Very excited to share that our latest paper is out in Science! We show that the type specimen of Nanotyrannus—an isolated skull—is fully grown, showing that it is not a juvenile Tyrannosaurus rex but a distinct species (1/12)
www.science.org/doi/10.1126/...

A diminutive tyrannosaur lived alongside Tyrannosaurus rex Whether Nanotyrannus lancensis represents a distinct taxon or an immature Tyrannosaurus rex is a decades-long controversy. The N. lancesis holotype is an isolated skull and ceratobranchials, but limb ...

Score more evidence for Nanotyrannus being a legit species of small tyrannosaur and not a juvenile T. rex:

Mature histology in, of all bones, the hyoid. Of the holotype Cleveland skull!

Truly innovative work by @griffinlabpaleo.bsky.social & team.

www.science.org/doi/10.1126/...

@iflscience.com! Many thanks for featuring our research!

When Did Some Ancient Extinct Species Return To The Sea? Machine Learning Helps Find The Answer Some crawled out of the ocean and then several million years later, crawled right back in.

Some crawled out of the ocean and then several million years later, crawled right back in.

www.iflscience.com/when-did-som...

How Aquatic Was Spinosaurus, Really? - Climate Ages Image made with CANVA with Artwork by PaleoGeekSquared Image made with CANVA with Artwork by PaleoGeekSquared From museum drawers to machine learning, scientists reveal a...

Many thanks to Dr. Silvia Pineda-Munoz at @climateages.bsky.social for covering our research!

Check out her great article on our Spinosaurus results here:
climateages.com/how-aquatic-...

Or dive into the original paper below!
doi.org/10.1016/j.cu...

The surprising crab-trap–pulling behavior is described in this article: onlinelibrary.wiley.com/doi/10.1002/...

We recently published a paper on how animal tool use is conceptualized, offering a framework to make sense of its different forms 👇📃 www.cambridge.org/core/journal... #evosky #philsci

Screenshot from Prehistoric Planet: Ice Age showing the head and neck of a giant stork.

Screenshot from Prehistoric Planet: Ice Age showing a long-legged bird standing on a rock. It is using one foot to hold down a piece of meat while also tearing at it with its beak.

Screenshot from Prehistoric Planet: Ice Age showing two flightless birds with long necks standing in a forest. The male on the left has a bright blue head and is much smaller than the female on the right.

Screenshot from Prehistoric Planet: Ice Age showing numerous large flightless birds feeding in a wetland.

Dinosaurs were nearly wiped out 66 million years ago, long before the start of the Quaternary ice age. However, #PrehistoricPlanetIceAge shows that the few surviving dinosaurs (birds) would go on to become highly successful. Let's meet the ice age dinosaurs featured in the series! 🪶🧪

Thanks so much, @armanafzadeh.bsky.social! Your feedback throughout was greatly appreciated :)

Shout out to my co-authors Lisa Freisem (@freisem.bsky.social), Chris Griffin (@griffinlabpaleo.bsky.social), Jacques Gauthier, and Bhart-Anjan Bhullar, and to the hundreds of museum staff, curators, and public institutions that make research like this possible 🙏

Limb proportions predict aquatic habits and soft-tissue flippers in extinct amniotes Among mammals and reptiles, the recurring evolution of fully aquatic forms from land-dwelling ancestors highlights the remarkable powers and implicati…

And, if you’d like to see what we found out about your favorite ancient reptile, you can check out the original paper here: www.sciencedirect.com/science/arti...

Check out Jim Shelton’s awesome story on our paper to learn more: news.yale.edu/2025/11/20/b...

Hey everyone! I’m excited to share that one of my thesis projects was just published in @currentbiology.bsky.social and featured on phys.org! In this paper, we use an old statistical approach developed by the US Navy in WW2 to predict the aquatic habits of various dinosaurs and marine reptiles 🦖🐊

Very happy that our new paper on the odd, looped optic nerves of chameleons is now out! It turns out having highly mobile eyes require some pretty specialized connections! doi.org/10.1038/s415...

‘Walking in Your Footsteps’ by The Police is great and under-appreciated as a dinosaur song

US PhD admissions shrink as fears over Trump’s cuts take hold Some doctoral programmes are admitting no students at all amid uncertainty about federal science funding.

Across scientific disciplines, US university departments are cutting the numbers of PhD candidates they plan to accept in the current application cycle, for students due to begin in 2026, according to a Nature news article. Some plan to pause admissions altogether. #Academicsky 🧪

Cool stuff! Congrats @chasedbrownstein.bsky.social!

The Midnight Library by Matt Haig is one of my favorite books. I’ll be sure to check out The Humans too :)

Woww stunning!

Limb proportions predict aquatic habits and soft-tissue flippers in extinct amniotes https://www.biorxiv.org/content/10.1101/2025.06.25.661573v1

Thanks Lauren! Much appreciated :)

Many thanks to @the-node.bsky.social for hosting this story and to @noonanlab.bsky.social (especially Reem Abu-Shamma and Jim Noonan) for their interviews and feedback!

Hybrid brains and the search for what makes us human - the Node It lives. It lives! What lives, you may ask? Well, somewhere in a lab at Yale University, one young scientist has stuck human brain cells and chimp brain

Hey BlueSky! Want to learn more about some almost literally mind-bending brain research being done by @noonanlab.bsky.social?

Check out the story below for one scientist's perspective on the importance of basic scientific research and the pursuit of open-ended questions about what makes us human.

Thanks for this shout-out, @rwburroughs.bsky.social! I’m glad you enjoyed it, and I hope it did your original article justice 😎

Thanks so much Armita!

Can simple #algorithms tell cryptic species apart?
by Caleb Gordon, MPhil, B.A.

iobopen.com/2025/05/04/c...

On

doi.org/10.1093/iob/...

#morphology #machinelearning #science #conservation #turtles #organisms #biology

Thanks for letting me write this, @sicbjournals.bsky.social! I hope Burroughs et al. enjoy it!

Huge congrats, Xavier! Well deserved!

I also fear there will be a Lost Generation of scientists & researchers w/ these massive cuts, esp current trainees & #ECR

Stripping away funding is quick, but short-sighted. It will set us back many years

We must support #science, it is one of the very best things #America does!

#Medsky
#Scisky