Keiffer Williams's Avatar

Keiffer Williams

@keifferwilliams.bsky.social

Visiting Assistant Professor at Berea College. I'm a vertebrate evolutionary biologist, with a particular interest in fishes and their teeth. keifferwilliams.com

59 Followers  |  68 Following  |  6 Posts  |  Joined: 16.05.2025  |  1.8919

Latest posts by keifferwilliams.bsky.social on Bluesky

@omgitsmejenny.bsky.social talks about her masters thesis on the effects of flower temperature on pollinator visitation and behavior

01.10.2025 14:03 β€” πŸ‘ 6    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Occlusal view of the teeth of a sheepshead fish, which is just a horror show of teeth.

Occlusal view of the teeth of a sheepshead fish, which is just a horror show of teeth.

Love how fish will just evolve a truly horrifying number of teeth to crush shelled creatures. Absolute nightmare, my students love seeing this stuff. From Cynthia Worcester's master's thesis (2012; linked below).

digitalcommons.wku.edu/theses/1215/

01.10.2025 14:04 β€” πŸ‘ 9    πŸ” 1    πŸ’¬ 0    πŸ“Œ 1
Taking the temperature of punctuated equilibrium on its semicentennial | Paleobiology | Cambridge Core Taking the temperature of punctuated equilibrium on its semicentennial

Our paper on perceptions of punctuated equilibrium - including suggestions for how to teach about this essential evolutionary concept - is now available online! doi.org/10.1017/pab....

30.09.2025 17:11 β€” πŸ‘ 14    πŸ” 7    πŸ’¬ 0    πŸ“Œ 2
Preview
Teaching human evolution in Alabama high school biology classrooms: the LUDA project - Evolution: Education and Outreach Background Multiple factors, including the context (human or non-human) in which evolution is learned and whether explicit efforts are made to try to reduce the conflict between evolution and religion...

I'm delighted that the first publication from a National Science Foundation-funded study I led studying the development and implementation of teaching resources on human and non-human evolution in Alabama high school biology classrooms was published a few days ago! (1/2)

25.08.2025 13:47 β€” πŸ‘ 22    πŸ” 7    πŸ’¬ 2    πŸ“Œ 0
Preview
Who Nose What Flows: Shark Narial Denticle Morphology and Hydrodynamic Implications Synopsis. Dermal denticles (scales) are important in influencing the movement of water around a shark’s body. To date, most of the research on denticle mor

I finally did it. My first chapter is FINALLY written and out for all to see. If you’ve attended my talks you 100% know what this is about. If you haven’t attended my talks, shark nostrils are more interesting than we thought. Enjoy! academic.oup.com/icb/advance-...

20.08.2025 15:22 β€” πŸ‘ 91    πŸ” 26    πŸ’¬ 6    πŸ“Œ 2
Post image

These are the most challenging times for early-career scientists and engineers.

My team is doing its bit to help by maintaining and even expanding our database of funding opportunities for early-career researchers.

We found 437 of them.

Download it freely here: research.jhu.edu/rdt/funding-...

11.08.2025 11:54 β€” πŸ‘ 312    πŸ” 200    πŸ’¬ 6    πŸ“Œ 3
Preview
Postdoctoral Researcher All Job Postings will close at 12:01a.m. CST (1:01a.m. EST) on the specified Closing Date (if designated). If you close the browser or exit your application prior to submitting, the application progre...

Fun news: I'm hiring a postdoc in ichthyology!

Please spread the word #TeamFish, and message me if you have questions.

(Job requisition id is R00107333 if LSU link below takes you elsewhere.)

lsu.wd1.myworkdayjobs.com/en-US/LSU/de...

08.08.2025 19:33 β€” πŸ‘ 104    πŸ” 106    πŸ’¬ 1    πŸ“Œ 4

I'm so excited to share my master's research! Do pollinators change their foraging behavior depending on floral and ambient temperatures? Do flowers that thermoregulate experience higher rates of pollinator visitation? Check it out below! 🏡️

01.08.2025 14:38 β€” πŸ‘ 14    πŸ” 5    πŸ’¬ 2    πŸ“Œ 1
Post image

New Comparative Anatomy Textbook! Completely free to read and open access!

doi.org/10.59319/YHF...

30.07.2025 20:07 β€” πŸ‘ 171    πŸ” 92    πŸ’¬ 7    πŸ“Œ 9
Schematic of how we measured live clingfish suction performance in a water tunnel with pressure transducers

Schematic of how we measured live clingfish suction performance in a water tunnel with pressure transducers

In @fishguy.bsky.social’s lab we have done many studies on the suction cups of dead clingfish. In this new paper, @fishyologist.bsky.social et al and I found that clingfish can control their suction and stick harder than dead ones! @sicbjournals.bsky.social 🐟 πŸ§ͺ

DM for PDF

doi.org/10.1093/icb/...

30.07.2025 14:48 β€” πŸ‘ 29    πŸ” 14    πŸ’¬ 1    πŸ“Œ 0
Video thumbnail

New fish paper! We found that Clinocottus globicpes eats anemones (weird!) using a novel wrestling behavior + strong jaws that likely started as adaptations for tearing algae. It also has thick skin that protects it from stinging cells. @jzoology.bsky.social 🐟πŸ§ͺ

DM for PDF.

doi.org/10.1111/jzo....

27.06.2025 14:14 β€” πŸ‘ 87    πŸ” 34    πŸ’¬ 2    πŸ“Œ 2
Preview
Incompatibility between two major innovations shaped the diversification of fish feeding mechanisms Large teeth and highly protrusible jaws are two feeding innovations that have evolved in fishes. High-speed videography and comparative phylogenetic analyses indicate that they are incompatible with e...

Out today in @plosbiology.org! We show that two major advances in fish feeding - highly protrusible jaws and large teeth - are functionally and evolutionarily incompatible with each other. @mikemihalitsis.bsky.social and Peter Wainwright. Free to read: journals.plos.org/plosbiology/...

24.06.2025 18:29 β€” πŸ‘ 52    πŸ” 26    πŸ’¬ 0    πŸ“Œ 1
Post image

I'm defending my dissertation next week, Monday June 30th at 10 AM ET. DM for a zoom link if interested!

24.06.2025 13:53 β€” πŸ‘ 38    πŸ” 9    πŸ’¬ 2    πŸ“Œ 2

Thanks Peter! Spoiler alert: no blenny teeth used, but blennies are still the best 😎

23.05.2025 16:03 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Thanks Emily! 🐟

23.05.2025 14:24 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Finally, a special shout out to all the museums that loaned specimens used in this study: @bellmuseum.bsky.social, Etnier Ichthyological Collection at UT Knoxville, Field Museum, Harvard Museum of Comparative Zoology, and Yale Peabody Museum. Now more than ever, #MuseumsMatter #CollectionsMatter

23.05.2025 14:05 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

@evovert.bsky.social and I provide an open-source workflow and best-practices guide for quantifying tooth surface complexity in fishes. If you’re into microCT methods, fishes, or teeth, this paper is for you. πŸ“ŠπŸ πŸ¦·

23.05.2025 14:05 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Investigating best-practices for applying a quantitative tooth complexity metric to fishes

First dissertation chapter has been published in Integrative & Comparative Biology, check it out here: academic.oup.com/icb/advance-...

23.05.2025 14:05 β€” πŸ‘ 20    πŸ” 9    πŸ’¬ 2    πŸ“Œ 2

🚨 A new rule would let career scientists like NSF/NIH program officers be replaced by political appointees

Already 14,000+ public comments, deadline is Friday

πŸ“£ Comments can be short. Courts consider themβ€”and scientists with NSF/NIH experience are especially impactful

Speak up! shorturl.at/WKuBj

21.05.2025 17:39 β€” πŸ‘ 541    πŸ” 515    πŸ’¬ 26    πŸ“Œ 51

@keifferwilliams is following 20 prominent accounts