Gianna Mitchell

PhD Student at The University of Mississippi

[ASLO @aslo_org]

Exciting opportunity for undergraduate students!
#ASLO is now accepting applications for the Limnology and Oceanography Research Exchange and Mentoring Experience #LOREX! Be part of an incredible learning journey and gain valuable research experience. Don't miss out and apply by 15 Jan 2026!

🔗 https://t.co/wwN78QWnPT

#aquaticscience #limnology #oceanography

[Gareth Fraser @garethjfraser]

New Paper Alert. @Ella_Nicklin leads our new paper in @Dev_Bio_Journal Evolution, development, and regeneration of tooth-like epithelial appendages in sharks. What do all 'odontodes' have in common? Is a tooth, just a tooth? #sharks #teeth #skinteeth

https://t.co/1N63grKByo

[Gareth Fraser @garethjfraser]

Exciting morning in the lab - photographing the newly donated adult Bonnethead Shark (Sphyrna tiburo) before CT scanning. This is the smallest member of the hammerhead family (Sphyrnidae); one of only nine species of hammerhead shark. 🔨💀🦈 #hammertime #hammerhead #shark #REU

[Gareth Fraser @garethjfraser]

Did you know that some sharks have skin denticles INSIDE their mouths, not just on the external skin!? This is the embryonic Bonnethead #Shark lower jaw with 'skin-teeth' covering the surface of the heart-shaped tongue-like structure, the basi-hyal! 🔨🦈🦷

[Gareth Fraser @garethjfraser]

An Odontode Explosion! So wonderful to see such amazing first #SICB2024 talks by our undergraduate researchers Julia Bailey and Gianna Mitchell - they presented on the ontogeny of skin-teeth (odontodes) in catfish and sharks, respectively. @NSF #REU @UF @UF_CLAS @UFBiology 🦈🦷🎉

[Gareth Fraser @garethjfraser]

It's a wrap! Our Accessible #Shark Summer 2023 @NSF #REU program has come to an end. Gianna @gigimitchell28 was an incredible part of the team and we were lucky to have her working on diversity of shark denticles in several species! Here's a snapshot of her time in the lab!🦈🦷🎉

[Gareth Fraser @garethjfraser]

CT scan image of #shark skin denticle roots forming in circles around sensory ampullae pores. Image taken from the cephalofoil (nose) of the Bonnethead Shark (Sphyrna tiburo! By @Ella_Nicklin and @gigimitchell28 #sharkweek2023 🦈
Have a play @Sketchfab: https://t.co/7Cg3rra54b

[Gareth Fraser @garethjfraser]

Check out this wonderful macro image of a cleared and stained baby catshark (Scyliorhinus canicula) completely covered in skin teeth! Image by @Ella_Nicklin, our excellent @NSF REU student Gianna Mitchell and our visiting #brightfutures high school student Grey von Meding! 🦈🦷😲

[Gareth Fraser @garethjfraser]

Think you know #shark skin denticles? Here are mosaic tile-like denticles on the cephalofoil (head) tip of the Bonnethead Shark. These denticles seem to grow together to fill space; no obvious polarity or shape! Image by Gianna Mitchell, our amazing @NSF REU student! 🔨🦈🦷

[Nicholls Soccer @Nicholls_SOC]

Happy Give-N-Day Colonel Nation!! Help Nicholls Soccer reach our GOALS and donate today!! ⚔️⚽️

Link in Bio! 📲
https://t.co/bli149RZg9

[Jackson McFarland @jacksonmcf27]

Lady May - Tyler Childers

[Jackson McFarland @jacksonmcf27]

She Got the Best of Me- Luke Combs

[Nicholls Colonels @GeauxColonels]

NEWS: @Nicholls_SOC launches The Goal Club as booster branch https://t.co/0YFjnWnWAh