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What are the limits of life?
A Chiton tuberculatus on a rock
An ostracod from a sulfuric hot springPicture
An SEM of chiton shell eyes (large circles) surrounded by aesthetes.Picture
Sunrise in Antarctica
In the Varney Lab, we "find animals that should be dead and ask them how they're alive". We combine 'omics, physiology, behavior, and more to understand the evolutionary innovations that permit animals to survive and thrive in remarkable ways. We focus on invertebrates.

Lab News

Bougainvillia muscus, a small hydrozoan

Back from another amazing summer at Friday Harbor Laboratories...

8/12/2026
Rebecca co-taught Invertebrate Zoology alongside Dr. William Ballentine, and BOY did we have fun. So many good worms, intense fieldwork, and lots of beautiful student scientific illustrations. It's always hard to leave the island, but excited to see what the next year brings!

Bougainvillia muscus, a small hydrozoan

Claire Prairie completed an amazing FHL REU!

8/8/2026
Claire joined forces with Mady this summer at Friday Harbor Laboratories, and they were fantastic moms to 5000+ baby chitons. We got to do some confocal with Jim Truman and had an absolutely amazing time! Stay tuned for updates on the development of the iron teeth in chitons, as well as new observations of aesthete development!  

Bougainvillia muscus, a small hydrozoan

Welcoming postdoc Emily Bierbaum!

8/1/2026
Emily Bierbaum joined the Varney Lab as a POE postdoc! Emily just completed her PhD at the University of Tulsa, where she worked on Brook Salamanders to investigate how the genes of the visual system change in expression across metamorphosis. Emily wrote a fantastic application, and we are excited to have her aboard. She will be pursuing work with the ostracods from sulfuric hot springs, asking how development interfaces with their ability to survive extreme environments! Can't wait to see what she gets up to! Read more about the POE postdoc at UNL here!

Bougainvillia muscus, a small hydrozoan

New paper in PNAS

7/16/2026
Happy to share that our paper on molecular convergence in cnidarians is out. Instead of finding genes under selection that contributed to diverse body forms, we found widespread convergence that was decoupled from body forms. Read more here!

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Congratulations to Mady winning best talk at the BioGSA symposium!

4/17/2026
Mady gave a talk on her SEM-EDX work examining the internal composition of chiton teeth, and brought the house down with lasers leaving "cavities" in the samples. 
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Congratulations to Mady on her NDSEG!

4/15/2026
SO PROUD to share that Madison was awarded an Honorable Mention on her GRFP... and then won the NDSEG! This incredibly prestigious fellowship will fund her studies for 3 years as she pursues the evolutionary origins of the iron-clad teeth of chitons!
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SICB2026: Chitons, pycnogonids, and more!

8/5/2025
VanHaren research poster showing assembly of mitochondrial genomes from museum specimens
The Varney Lab went to SICB in Portland, Oregon. Mady presented the first poster of her PhD, and REU student Khrista Nicholas also presented a poster! 
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VanHaren research poster showing assembly of mitochondrial genomes from museum specimens

Congrats to Christina on her UCARE poster presentation

8/5/2025

A chiton trochophore larve

WE HAVE BABY CHITONS

6/20/2025
Spawning chitons on purpose is almost impossible. ALMOST. Rebecca is working with a wonderful REU student at Friday Harbor Laboratories in the San Juan Islands this summer, and together they have spawned a chiton and have larvae settling. Setting the stage for some exciting science, AND they're CUTE!
A chiton larva that just metamorphosed, with 8 new shell plates just visible.

Congratulations to Christina on her UCARE award!

5/08/2025
Big congrats to Christina Van Haren on receiving a UCARE award through UNL. This award will support her summer research as she investigates the use of eDNA in characterizing the fauna of ephemeral waters in Nebraska and beyond!

Bougainvillia muscus, a small hydrozoan

New paper in Genes, Genomes, and Genetics

5/13/2025
New jellyfish genome just dropped! You know that feeling when you accidentally sequence the genome of the wrong animal? Read more about our high-quality genome assembly for Bougainvillia muscus here!

SICB2025

1/9/2025
A 3-D scan of a pycnogonid
A 3D scan of a sea spider
The Kocot lab past and present at SICB
Kocot lab past and present members.
Great to be at SICB and to reconnect with science family from afar. Rebecca is proud to be on 3 talks ranging from sea spiders to jellyfish eyes. Looking forward to exciting science to come!

The lab is open for science!

3/18/2025
Construction always takes longer than you expect. But we made it through a minor flood, some strange walls, and the discovery that the last person here had the ENTIRE space wired to a single 20 amp breaker (bad plan!). It's great to be settled in my actual office and to have science happening in my actual lab! Looking forward to exciting times ahead!
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  • Research
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  • Teaching
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