How common is multicellularity in bacteria? And archaea? And how does it evolve? We wrote a short review "On the architecture and evolution of prokaryotic multicellularity". Preprint link: bit.ly/4ta06Gq Sharing and comments are much appreciated. 1/4

A few days ago, the @cnrs.fr Welcome Day for new permanent staff took place. Far from feeling welcoming, it highlighted some questions about how international talent is included—or excluded—in the system! See 🧵below about my experience! @cnrs.fr @cnrsecologie.bsky.social @cnrs-paris.bsky.social

Job alert: Assistant Prof. in Paleoclimate/Paleoceanography/Sediment Geochemistry, Scripps Institution of Oceanography, UC San Diego (USA). Apply by 15 March, 2027. More info: buff.ly/XzcJ1y0

Widespread promiscuous alkaline phosphatases underscore ancient microbial phosphite utilization www.pnas.org/doi/abs/10.1... #jcampubs

Now published in Nature Biotechnology: go.nature.com/44P7nSm If you missed it, the TL;DR is in my April thread below

How do #cyanobacteria keep amorphous calcium carbonate (ACC) stable inside their cells? Our new #JACS paper shows — via solid-state NMR — that a protein shell and water molecules stabilize ACC. 👉 pubs.acs.org/doi/full/10.... #biomineralization @biomin-impmc.bsky.social @ulbruxelles.bsky.social

The Carbonate Forum will be back in 2026! Keep an eye on this account for regular news and updates - from the start of December.

Wound healing is a hallmark feature of all life, including single cells. In a new preprint, Ambika Nadkarni @biochembika.bsky.social investigates a new dimension in cellular wound healing: how cells recover AFTER the wound has been closed www.biorxiv.org/content/10.1...

Wow!!

‼️New PhD project in Edinburgh: "Animals, traits, and oxygen in the Ediacaran Nama Group, Namibia". Supervised by Rachel Wood (Amelia Penny and I co-supervising) — big UK+Namibian team — help us understand early animal evolution! Apply by Dec 14th #paleontology e5-dtp.ed.ac.uk/project?item...

In 2010, a scientist argued that 2.1 billion-year-old African specimens showed complex life appearing 500 million years ahead of schedule. His critics say they are — literally — fool's gold. At stake? The question of when and how complex life arose at all. My cover story (!) for @sciam.bsky.social!

📣New preprint alert! Check out this new preprint by Zhu et al. that quantifies and compares labile exometabolites from six axenic strains of marine phytoplankton 🌊 to identify key chemical currencies within the marine chemical-microbial network! 🧪🦠

Job alert: Assistant Professor of Earth Sciences: Stable Isotope Biogeochemistry and/or Geobiology, Dartmouth College (USA). Apply by 1 Dec 2025 or position open until filled. More info: buff.ly/w7LPFMv

Check out our latest blog post: "EAG co-sponsored conference report – Microbialites: Formation, Evolution, Diagenesis 2025". Discover more here: buff.ly/LcaQOC7 @unihannover.bsky.social