Ella Nicklin

Thanks team, you’re the best!!

…And if you’re interested in our research, check out poster 032 where Campbell and Lily will be presenting on chimaera head development! @sicb.bsky.social @sicb-dcb-dvm.bsky.social #ufresearch #nsf

Calling all #SICB2026 attendees, come see my poster (032) at TODAY at 3.30pm-4.30pm! Learn how I managed to image baby sharks weekly to see their “skin-teeth” form!! @sicb-dcb-dvm.bsky.social @sicb.bsky.social #ufresearch

UMAP of single nucleus RNAseq dataset of Polypterus fin regeneration

Hey Regen folks 👋 Excited to share that our single-nucleus RNA-seq dataset for Polypterus fin regeneration is now live at the Broad Institute portal! Dive in here: tinyurl.com/5bck22jx
Big thanks to the team for making this happen—looking forward to seeing what you all discover!

Teeth outside the jaw: Evolution and development of the toothed head clasper in chimaeras | PNAS Chimaeras (Holocephali) are an understudied group of mostly deep-ocean cartilaginous fishes (Chondrichthyes) with unique characteristics that disti...

Super excited to share our new paper, out today @pnas.org 'Teeth outside the jaw: Evolution and development of the toothed head clasper in chimaeras' @karlycohen.bsky.social 👻🦈 🦷 www.pnas.org/doi/10.1073/...

This common fish has an uncommon feature: forehead teeth, used for mating New findings call into question one of the core assumptions about teeth. Adult male spotted ratfish, a shark-like species native to the eastern Pacific Ocean, have rows of teeth on top of their heads,...

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...

MBL scientists use skates and their embryos to study skeletal development. By shining a light through egg cases, scientists can watch the entire maturation process.

Learn more about skates as a research organism here: bit.ly/3Rmvq3F

📹 Bioquest

Morphogenesis and regeneration during shark odontode development

#DBfeature 🦈🦷

Evolution, development, and regeneration of tooth-like epithelial appendages in sharks

by Ella Nicklin, Gareth Fraser et al @ellanicklin.bsky.social @garethjfraser.bsky.social
www.sciencedirect.com/science/arti...

Check out this "donut" shark! From the @floridamuseum.bsky.social - malformed embryos of the sandbar shark (Carcharhinus plumbeus). @ellanicklin.bsky.social CT scanned this specimen to show very odd development of the vertebral column, with no division of the centra and odd mineralization! 🍩🦈 #shark

The elongate tail of a ray

What is the function of the elongate tail in elasmobranch #rays? A 🧵 and a new hypothesis. A paper with @juliachaumel.bsky.social in @royalsociety.org Proceedings B (shorturl.at/PmfYD) shows that the tail of cownose rays (and a few other species studied so far) has an elaborate lateral line.

I'm recruiting a PhD student to join my lab at the University of Dayton (Fall 2025) to study the evo-devo of tadpoles! More info here: evol.mcmaster.ca/brian/evoldi...

Do you love talking about tomography as much as I do? I made a starter pack full of people who use CT to do their science!! Let me know if you want to join in on the tomography talk! Other 3D imaging modalities also welcome ☢️🩻👩‍🔬
go.bsky.app/VjBpAAy