Most animal species pack sperm DNA with protamines instead of histones. Protamines are essential for male fertility. They are among the fastest-evolving genes in animals. That makes little sense. We think we know why, in a new paper led by @ching-hochang.bsky.social. www.science.org/doi/10.1126/...

Some glass sponges may be the oldest animals on Earth. Individuals of Monorhaphis chuni are estimated at over 11,000 years old, and they build a single skeletal spike up to 3m long, the largest natural glass structure any animal makes. 🧪 #SpongeThursday #HowToBuildAGiant #marinelife

En cette Journée internationale du poulpe, Gallica invite les amateurs de pieuvres et de poulpes à plonger dans cette sublime “Histoire naturelle des céphalopodes” (1835-1848) ! c.bnf.fr/YmO

In our new paper by Kata Szabó @Kata_Szabo
et al. we present optimised sample-preparation workflows for volume electron microscopy for entire small marine organisms. The workflow includes high-pressure freezing, various freeze substitution protocols and […]

[Original post on biologists.social]

Welcome Melina Thetiot, new member of the lab @ijmonod.bsky.social, assistant professor in Neurobiology at @upcite.bsky.social. Melina is coming from our colleagues' lab @zenlabpasteur.bsky.social. She will investigate the role of the nervous system in #Platynereis regeneration !

@ijmonod.bsky.social @upcite.bsky.social

Happy to share our review on ROS evolution, regeneration and therapeutics, published in Cell Mol Life Sciences. Led by our former PhD student Aurore Vullien, co-supervised with @rottingerlab.bsky.social in collab. with @christinerampon.bsky.social and J. John & E. Amaya.
doi.org/10.1007/s000...

We have a new branch in the family tree of animals: Atreyea- a previously unrecognized lineage among the closest unicell relatives of animals.

Led by @konsmitsi.bsky.social & @freejakoba.bsky.social together with a fantastic team of collaborators.

🔗 papers.ssrn.com/sol3/papers....

#protistsOnSky

For those of you who, like me, missed the Vatican #EvoDevo: www.pas.va/en/events/20..., don't worry, there will be a more earthly local version next week (Friday) in Cambridge Dept of Zoology, program here: londonevodevo.co.uk. Can't promise cardinal vestments in the background though.

One of the output of a 15 y collaboration with biologists @stemdevevo.bsky.social trying to understand what stem cells are through philosophy, phylogeny and expe. This one is more philo. Writting led by @gugli-militello.bsky.social during his post-doc
www.journals.uchicago.edu/doi/abs/10.1...

New work from @spinalorga.bsky.social & co

PAX3 doesn't just pattern the dorsal neural tube, it links metabolism to mechanics

PAX3 sustains upper glycolysis and mannose-dependent glycosylation, which cluster N-cadherin & strengthens adherens junctions

www.biorxiv.org/content/10.6...

Not every cell react the same way to caspase activation. In our recent study (led by @tomcumming.bsky.social and initiated by @avillars.bsky.social ), we tried to better understand what explains this difference and outlined a role of past caspase exposure 👇
www.nature.com/articles/s41...

Le journaliste qui a rencontré les équipes de l'IRD au Sénégal ou au Niger note qu'alors que les crises de l'Afrique de l'Ouest altèrent cette coopération Nord/Sud, il faut en sauvegarder les outils pour la redéployer lorsque les conditions en seront réunies.
theconversation.com/fusion-ird-c...

Yay! It's publication week for @kendallbclay.bsky.social and @taylormlanier.bsky.social's doctoral research! 1/6 www.nature.com/articles/s41...

📢 Paris Postdoc Seminar

📅 October 6th
📍Institut Jacques Monod

Sophie Peron ( @institutimagine.bsky.social ) will present a @parispostdocs.bsky.social on the theme " Coordination between cell cycle and differentiation in planarian stem cells"

➡️ buff.ly/7swy9Oy