Have you ever wondered if fish yawn? (and if they do, what that tells us about yawning?) The first preprint from the lab and a serendipitous observation ⬇️ www.biorxiv.org/content/10.6...

After spending 6 amazing years at NIH, the Sur Lab opens its doors at the University of Arizona @uazbio5.bsky.social. We study development, function, and communication networks of rare intestinal cell types using zebrafish and human organoids. Check out more at: sites.arizona.edu/surgutchatte...

Frugal design, previously demoed at @devbioquintay.bsky.social 🐟🌎

Cells & Development@cellsdev.bsky.social · 3mo ago

Do you work with #zebrafish? Wanting a budget-friendly housing system capable of thermal control and filtration? Perhaps you just set up your lab and are looking for a short term solution? Then ZebRack designed by the Valdivia lab might pique of your interest? Check it out: doi.org/10.1016/j.cd...

Great initiative! @zebrafishrock.bsky.social helped me recruit members of my new lab by promoting my job posting.

Zebrafish Rock!@zebrafishrock.bsky.social · 3mo ago

Looking for candidates with #zebrafish experience? Let us promote your job openings across our Slack, LinkedIn & Bluesky network! To use this FREE service, fill out the Google Form on our website: linktr.ee/zebrafishrock #RockOn 🧪

Looking for candidates with #zebrafish experience? Let us promote your job openings across our Slack, LinkedIn & Bluesky network! To use this FREE service, fill out the Google Form on our website: linktr.ee/zebrafishrock #RockOn 🧪

What a ride this has been with @jeffreyafarrell.bsky.social!! THANK YOU JEFF for giving me the best 6 years of my life doing science in your lab. I'm finding it extremely hard to say this goodbye! I will miss everyone in the Farrell Lab and especially YOU! 🥹🥹

Jeff Farrell@jeffreyafarrell.bsky.social · 3mo ago

Hard to say goodbye today to the lab’s first postdoc, but so excited to see what @abhinavsur.bsky.social will do in his new lab at U Arizona. We’re going to miss you deeply over here. Safe travels and knock em dead.

📢📢 My lab at the University of Arizona is opening soon and I'm RECRUITING — especially techs/specialists with interest in aquaculture or zebrafish husbandry. Please share! 🏔️ 🌵 Lab website: lnkd.in/eZHk8DxA Apply/more info: arizona.csod.com/ux/ats/caree... #zebrafish #husbandry #aquatic #marine

📢 We've just published a chromosome-level nuclear and mitochondrial genome assembly for Capitella teleta (~243.6 Mb). Despite a highly conserved gene family repertoire, both genomes show extensive rearrangements, revealing a decoupling of gene family and chromosomal evolution.

Davies et al. assemble the genome of polychaete Capitella teleta, a model for evolutionary developmental biology, comparative genomics, conservation, and ecotoxicology, generating a 243 Mb chromosome-level genome, and publish a genome browser. 🔗 doi.org/10.1093/gbe/evag041 #genome #evolution

I had a lot of fun working on this collaboration and revisiting the scRNAseq data. Although I work on zebrafish now, I still haven't forgotten my spiralian roots. Thanks @chemamd.bsky.social @baxevanislab.bsky.social and Elaine Seaver for the opportunity.

Allan Carrillo-Baltodano@allancarbal.bsky.social · 5mo ago

New from @chemamd.bsky.social lab @qmulsbbs.bsky.social Collab with Elaine Seaver, @baxevanislab.bsky.social @neva-meyer.bsky.social @abhinavsur.bsky.social New chromosome-level assembly for Capitella teleta 🪱 academic.oup.com/gbe/advance-... #DevBio #WormWednesday @genomebiolevol.bsky.social

Today is #RareDiseaseDay & we are celebrating by highlighting the invaluable work of the Undiagnosed Diseases Network (UDN)! Formed in 2020, it aims to solve the most challenging medical mysteries using advanced technologies. In this thread, we will highlight their use of the #zebrafish model. 1/5 🧪

Happy International Day of Women & Girls in Science! Today & everyday I am grateful for the opportunity to work alongside & learn from this talented group of women scientists. Funded by grants from the NIH, this team is working to understand how the gut microbiome affects our digestive health.

Switching fields or wanting to become an expert in #zebrafish research? The @mblscience.bsky.social 2026 Zebrafish Development & Genetics course offers a fantastic opportunity to learn from leaders in the field! Application deadline: March 2 Please spread the word! www.mbl.edu/education/ad...

A very well deserved award for a wonderful scientist and mentor. My time in Jeff’s lab has undoubtedly been one of the most enjoyable and enlightening periods in my scientific career.

Jeff Farrell@jeffreyafarrell.bsky.social · 6mo ago

Oh man! What a crazy honor to receive this award from SDB!! I love being a part of SDB so much - it has led to so many awesome ideas, collaborations, and friendships over the last 13 years, so this is really exciting. Looking forward to seeing you all at the meeting. Thank you, SDB!!!

Happy New Year! NEW LAB PREPRINT testing how best4+ intestinal epithelial cells develop! best4+ cells are conserved across vertebrates and altered in IBD & colorectal cancer. But they were first molecularly IDed in 2019. We barely know anything about them yet! What do they do?? HOW DO THEY GET MADE?

Abhinav Sur@abhinavsur.bsky.social · 8mo ago

Closing out 2025 with our new preprint where @jeffreyafarrell.bsky.social and I explore development and function of zebrafish intestinal best4+ cells – molecularly described in 2019, conserved in evolution, absent in 🐭, and altered in inflammatory bowel disease. www.biorxiv.org/content/10.6...

Closing out 2025 with our new preprint where @jeffreyafarrell.bsky.social and I explore development and function of zebrafish intestinal best4+ cells – molecularly described in 2019, conserved in evolution, absent in 🐭, and altered in inflammatory bowel disease. www.biorxiv.org/content/10.6...

Developmental regulation of intestinal best4+ cells

best4+ /CFTR-high expressing cells are a recently described intestinal epithelial cell type potentially altered in inflammatory bowel disease and colorectal cancer. However, their developmental origin...

biorxiv.org

Check out our recent preprint, "Live longitudinal imaging of meningeal cerebrovascular injury and its sequelae in adult zebrafish." lnkd.in/gN7z6th4

I am delighted to announce that I will be starting as an Assistant Professor at the University of Arizona in Spring 2026. Our lab will study intestinal best4+ cells in zebrafish. We are seeking a lab manager with previous zebrafish experience – come build with us. surlab-gastro.my.canva.site

Ok, friends! If you’re a Daniocell user, it’s now available again outside of the NIH. Very sorry for any inconvenience this posed for any of you and thanks for your patience. We’re taking additional steps to hopefully prevent similar outages in the future. Happy surfing 🎣

Transitions in development – an interview with Jeffrey Farrell @jeffreyafarrell.bsky.social talks about becoming a group leader, his insights on advocacy for developmental biology and his belief in unifying single-cell biology with classical approaches. journals.biologists.com/dev/article/...

For more customized analysis using our zebrafish timecourse dataset available in Daniocell, check out this amazing resource DaniocellDesktop. Extremely happy to see this brainchild of @jeffreyafarrell.bsky.social out in the wild.

Jeff Farrell@jeffreyafarrell.bsky.social · last yr.

If you love Daniocell, but wish it could generate analyses specific to YOUR genes & cell types of interest, check out DaniocellDesktop - a new point-and-click app for Mac and Windows that enables reanalysis of the Daniocell data without programming: daniocell.nichd.nih.gov/desktop/ (1/4)

Spiralia enthusiasts!! 🐚🐙🐌💛 Our amazing speaker for the Spiralia Satellite symposia at the #PASEDB2025 Néva Meyer, Associate Professor, Clark University Organizers: Christina Zakas and @albertinlab.bsky.social #evodevo #pasedb #spiralia

It was so awesome to have @jeffreyafarrell.bsky.social here to give a departmental seminar today!!

With a published genome & advancements in gene editing, the field of #zebrafish genetics has exploded in recent decades. We take a look back at major achievements in this infographic. For more, read this book chapter by @varshneylab.social et al (2015)($) doi.org/10.1016/bs.a... #ZebrafishFunFacts 🧪

Masters of regeneration? #Zebrafish are capable of regenerating their fins, spinal cord, pancreas, skin, retina, heart, liver, brain, tendons, hair cells, & kidney. For more info on this amazing species, read this primer on regeneration: journals.biologists.com/dev/article/... #ZebrafishFunFacts 🧪

I thought this was an interesting interaction! This Polychaete larva (possibly Spionidae?) has somehow got inside the tube of a Lanice sp. (sand mason worm) larva! The tube resident doesn’t seem too fussed about the visitor though. 🦑 #plankton

Happy to share a new preprint from my lab! We characterize the on/off kinetics, light dosage-dependence, and more for a suite of optogenetic signaling activators in zebrafish embryos 💡 www.biorxiv.org/content/10.1...

An optogenetic toolkit for robust activation of FGF, BMP, and Nodal signaling in zebrafish

Cell signaling regulates a wide range of biological processes including development, homeostasis, and disease. Accessible technologies to precisely manipulate signaling have important applications in ...

biorxiv.org

“These findings support the use of zebrafish as a useful comparative model for studying the meninges, provide a foundational description for future zebrafish meningeal research” New work from @biomarina-vg.bsky.social & Weinstein Lab at NIH 🐟

bioRxiv Developmental Biology@biorxiv-devbio.bsky.social · last yr.

Anatomical and Molecular Characterization of the Zebrafish Meninges https://www.biorxiv.org/content/10.1101/2025.04.09.646894v1

Great new work led by @biomarina-vg.bsky.social on zebrafish meninges! Particularly 🤩 is the descriptions of ependymin-expressing meningeal cells (not a fibroblast!) & ablation studies showing their essential role in viability. So much more to learn! Congrats Marina & team on this great work! 🦓🐟🧠

Zebrafish Rock!@zebrafishrock.bsky.social · last yr.

“These findings support the use of zebrafish as a useful comparative model for studying the meninges, provide a foundational description for future zebrafish meningeal research” New work from @biomarina-vg.bsky.social & Weinstein Lab at NIH 🐟

🫀 Zebrafish protein unlocks dormant genes for mammalian heart repair. Our work published by @springer1842.bsky.social in Nature CVR uncovers how the protein HMGA1 could unlock mammalian heart repair. rdcu.be/d5owa #HeartHealth #Regeneration #Biomedicine #Cardiology