Back happy but exhausted from our first lab retreat in Carry-le-Rouet- amazing science discussions, fieldwork, some disputable pétanque, and the discovery of some local choanos ❤️ As a bonus, learning about Trichoplax by our local guest A. Pasini. Thanks to @embo YIP for providing all the funding

Any idea of what is this? In the sky above avignon, FR.

we're on the cover!

✍️ New preprint from the @minclab.bsky.social 📃 Mechanosensation Promotes Local Cell Wall Repair 🔗 www.biorxiv.org/content/10.6...

We´re hiring: Dream job in #marine science @uni-muenster.de Deadline approaching - See below and apply by May 1st Please RT

#ResultatScientifique🔎| Et si les premiers animaux avaient une origine bien plus complexe qu’on ne le pensait ? ▶️https://www.insb.cnrs.fr/fr/cnrsinfo/des-colonies-de-cellules-aux-animaux-une-transition-revisitee

We´re hiring a #PhD student - if you´re interested in combining genetics, cell biology and state-of-the-art imaging to study #epithelial tissue dynamics in #Drosophila, apply to the CiM-IMPRS PhD program by May 1st (see below) Please RT @uni-muenster.de @sfb1348.bsky.social

Don’t know if this sampling will bring beauty choanos, but biking at dawn to reach la pointe des chats at sunrise was just amazing 😍

Dear colleagues, The 36th French Drosophila Meeting (Trégastel, Oct 5–8, 2026) website is now online! drosofrance26.sciencesconf.org We look forward to welcoming you in Brittany! Best wishes, The Organizing Committee Hadi Boukhatmi, Régis Giet, Roland Le Borgne

Bridging the lipid divide: archaeal ESCRT-III binds phosphoinositol and polarises the cytokinetic membrane www.biorxiv.org/content/10.6...

These images show live embryos of animals (jellyfish, crustacean, worm, sea urchin, sea squirt, beetle) and one of animals closest single-celled relatives. They were captured taking advantage of fluorescent proteins localised on the outer membrane of cells, allowing us to observe cell outlines. 1/9

This year, the annual symposium of my Chaire @college-de-france.fr will be on The Evolution of Developmental Mechanisms. An impressive lineup of speakers and weirds animals, including humans. Free entrance and coffee breaks. Come, have a seat, relax and enjoy the best possible basic science🤘RT🙏

Drosophila border cells are beautiful to watch… but far from easy to image. Kudos to the brave and skilled @vitoryang.bsky.social, who took on the challenge of establishing border cell migration imaging in the lab! His movies are astonishing, and now our first-ever study on #cell #migration is out!

Orban concedes defeat. The support of Trump, Vance, Putin, Lavrov, Weidel, Milei, Le Pen, Fico, Babis and many others could not overcome Hungarian anger at a stagnant, corrupt regime www.theguardian.com/world/live/2...

Had a lot of fun at the @embo.org cytoskeleton forum @sorbonne-universite.fr this week! As a bonus, got to discover the view from the tour de Jussieu (which is very nice, as from it, you don’t see the tour de Jussieu). Kudos to organizers @romet-jegou-lab.bsky.social @echardlab-pasteur.bsky.social

🧬 Last call to join us in Cambridge for #EMBOMBoA26 (July 6th-10th)! We are just one week away from the registration and abstract submission deadline for the EMBO Workshop on the Molecular Biology of Archaea!

Looking to get back into research after a career break? Come and join us!

I'm hiring! I have 2 open positions: 🔬 Postdoc 🧪 Research associate We study how animal multicellularity evolved by exploring the molecular logic of cell adhesion using cell biology, 'omics, and tool-building in non-model organisms. Come join us! Details and application links 👇 Please repost

We are looking for a new group leader to join the IGH (Montpellier, France). I can’t wait to meet my future colleague! Apply :-) More infos here: igh.cnrs.fr/join-igh-as-...

Expansion microscopy of a loricate choanoflagellate, generated by Mylan Ansel in our lab 🤩 (yes, the lorica expands. No, we don't understand how either)

Choanos on an hydra tentacule 🧐

Wonderful retreat of Cell and Dev Biol @cirbcdf.bsky.social @college-de-france.fr 👏👍 Great talks from young colleagues, lot of energy and good vibes🔥 (also karaoké, I heard) 🙏 organisers, you rock!

Are you curious about animal origins? Want to perturb their genetics to find out more? Now it's a lot cheaper: the FUNR @frutag33.bsky.social Lab's effort to make transfection more accessible for choanos (& relatives) is up now! 🧬 
 A brief 🧵1/5

VOTONS ! En ce jour d’élections municipales, chaque voix compte. Voter, c’est participer très concrètement à la vie démocratique de sa commune. Merci à toutes celles et tous ceux qui tiennent les bureaux de vote et rendent ce moment possible. #Municipales #Démocratie #Vote

www.biorxiv.org/content/10.6... Amazing work by Kris and gang! For the first time we have been able to image division ring components live in Sulfolobus. And guess what - CdvA is asymmetrically inherited.

the deadline is coming soon👇 don't miss it, we are looking forward to welcoming all teleost (not just zebrafish 😉) afficionados in Vienna! 🙂🐟🐠🤓

3900 signataires, déjà, de la tribune de Stand Up for Science ! Et vous? standupforscience.fr/tribune-2/

*Recruiting new group leaders* The @lmcb-ucl.bsky.social at University College London are looking for outstanding candidates to sponsor for career development fellowships. Fellows would then be assessed for tenured positions at the end of the fellowship term.

Final version @nature.com of our paper describing unconventional multicellular development in a choanoflagellate inhabiting an extreme environment. A ton of new data since the first @biorxivpreprint.bsky.social preprint (which we've kept updating). A brief 🧵 (carried over from the old place)

Protist lovers: Please apply for a week of rhapsody! Learn by doing: MicroSEA (Microbial Sea Eukaryotes) course is a one-week, field-based summer school to train early-career researchers in the diversity, ecology, and single-cell biology of marine protists. opbc.sciencesconf.org #protistsonsky

Want to join a happy bunch 🥳 to organise meetings, outreach activities and other initiatives about developmental biology in France? Apply and/or vote 🗳️!

Clonal-aggregative multicellularity tuned by salinity in a choanoflagellate www.nature.com/articles/s41... #jcampubs

Today, I was happy to be able to include a map of my favourite island in my HDR manuscript. Mixing hollidays memories and science. 😍

Group Leader Call at the @cbitoulouse.bsky.social in Genome biology, projects at the interface with devbio will be given particular attention. please share :) cbi-toulouse.fr/wp-content/u...

Dear UK #drosophila @FlyBase Cambridge is now able to accept PO orders for support. So please get in touch with https://wiki.flybase.org/wiki/FlyBase:Contribute_to_FlyBase

... credits for the 🎥 go to @theajacobs.bsky.social To learn more about our work on #tricellular junction assembly and dynamics, open positions etc., see www.uni-muenster.de/Biologie.IMZ... @uni-muenster.de @sfb1348.bsky.social

Don't miss this great opportunity!

A 🆕 #Ichthyosporea story Led [email protected], in Co. @gautamdey.bsky.social & @hiralshah.bsky.social+🔥team across @embl.org & @sciencesunige.bsky.social We finally have a look at what #microtubules are doing during #cellularization in #Sphaeroforma ▶️ tinyurl.com/MTSARC #ProtistsOnSky

How does the piRNA pathway solve the self vs. non-self problem? 🧬 Since piRNAs come from single-stranded RNA, how does the cell choose the right ones? For years, "piRNA clusters" were seen as THE privileged source. But are they really special and earmarked for biogenesis? (1/19)

#stuffthatmatters but 0.2% yield in 72 days... 🤷‍♂️

Beauty of today #protistsonsky

Abstract submission and registration for the *10th Euro Evo Devo Meeting 2026* at University of Glasgow (June 8-12, 2026) is open. Early bird deadline: March 5, 2026. More info: https://www.evodevoconference26.com/ #conference

Extremophile alert! Registration is OPEN for the 2026 EMBO Archaeal workshop in Cambridge. Spaces are limited, so register soon with an abstract if you’d like to give a talk. If you can’t come in person, we are welcoming virtual attendees. So join us online where all talks will be screened!

from viruses to lipid transfer and multiple symbiosis in early eukaryotes... #cellbiologyofeukaryogenesis @sbcf.bsky.social

fantastic start for our Eukaryogenesis meeting with a vivid overview of membrane remodelling systems in Archae!

finishing with a path to multicellularity via ultrastructure complexity #cellbiologyofeukaryogenesis @sbcf.bsky.social a big thank you to all speakers!

Please repost and consider applying: we work in such a fantastic context, we ask so interesting questions, and we have such a collegial and best-willing atmosphere… CRBM = Happy & Good Science

Nicole King will give a seminar in College de France on the 10th of february at 11.30, telling us about the secret lives of choanoflagellates. Don’t hesitate to join!