And now it's out! Happy that PNAS selected for the cover this SEM image snapped by @samjlord.bsky.social, one of the most evocative visualizations of Euplotes that I have ever encountered. www.pnas.org/doi/10.1073/... Stay tuned for what is shaping up to be some fascinating follow-up in the lab...

Pentapartite symbiotic system in #Legendrea loyezae by @filiphusnik.bsky.social & co. doi.org/10.21203/rs.... #SymbioSky #protistsOnSky

I wrote a thing on our current #ERC Consolidator project PlastidOrigin. Also the tree of eukaryotes is free to use, DM me if interested in a png version #protistsonsky edition.pagesuite-professional.co.uk/html5/reader...

My lab is currently looking for a postdoc interested in phylogenomics to work with our group on PhyloFisher. Please reach out if you or anyone you know is interested. evol.mcmaster.ca/brian/evoldi...

Interested in working on the evolution of photosynthetic endosymbioses? Come join us! I have 2 open positions in my new group @cemess.bsky.social in Vienna 3yr postdoc info: tinyurl.com/4emkjpn4 4yr PhD info: tinyurl.com/mtxmsjpy Apply by 1st June! Please share/repost #Protists #Symbiosis #PhD

I have a bit of a problem with protist having both cilia and flagella at the same time, but still love these comics and gladly reposting it for #protistsonsky to see 😍

Surprising view on the #TreeOfLife in 2026, preprint by Li & Zhang doi.org/10.64898/202.... "Organism-Environment Topological Interfaces Drive the Origination of Organismal Form". #protistsonsky might respectfully disagree I suppose 😱

Thank you, Lisa for making and sharing these clips. Can I just say that this remarkably detailed 3D model was generated by @kakanikatija.bsky.social and her group *minutes* after we observed the animal in the water. Digital specimens are here.

GOOD NEWS! Our BRILLIANT Red-ALERT CDT (@redalertcdt.bsky.social) has funding for one more home studentship at the University of Bath so we're re-advertising this project! New deadline: May 18th Come explore protist and invertebrate diversity with us!

🌊 Exciting #PhDPosition in #PlanktonEcology at the University of Koblenz, Germany! Work on marine protists with a mix of 🔬 wet lab and 💻 bioinformatics in a 3-year, 60% position. 📅 Apply by 20 May 2026 Please repost/share 🙌 Link: tinyurl.com/yu27knau #Protists #MicrobialEcology #PhD #Ecology

What? Diatom plastids in sea urchin eggs? Check out, #protistsonsky

What if you got to work with some of your best friends on a science project? I can't publish how fun this was, but I can show you the data (🧵)! Last week, we posted our second neutrophil swarming paper to bioRxiv and I wanted to post my favorite videos here~ www.biorxiv.org/content/10.6...

Our latest work on shape-programmable tissues is out in @science.org. By positioning topological defects in cellular nematics, we encode frustrated 2D force fields that relax into predictable 3D shapes. Collaboration with Marino Arroyo’s lab, led by @pauguillamat.bsky.social at @ibecbarcelona.eu.

This is .wild. !

Crab evolution is so cool. Don’t mess with things that look like rocks in tide pools!!

A holy Harpacticoida with a diatom halo. 😇 #marineplankton #plankton #copepod 🦑

Check out our new release on BioRxiv co-lead by @pm-mueller.bsky.social 👉 rb.gy/lnrizk special🙏 to Severine Kunz #MDC @leventallab.bsky.social @andimicroscopy.bsky.social @ewerslab.bsky.social and Kedar Narayan @NCI CCR VolumeEM Are the days of discovering new cellular structures over?? /1

New #ISEPpapers #preprint by @deemteam.bsky.social: Re-evaluating the eukaryotic Tree of Life with independent phylogenomic data www.biorxiv.org/content/10.6... #Protists #Microbes #Evolution #Eukaryotes #TreeOfLife #Phylogeny #Phylogenomics #Bioinformatics #Algae

nice Vanella!

Dive into the microscopic world of pond critters! These stunning images reveal ciliates and water bears in incredible detail, showcasing nature's hidden wonders.

One of biggest mysteries in biology: how did complex eukaryotic cells evolve from simple microbes? ~1.8 billion years ago, an archaeal cell likely merged with a bacterium to form the first eukaryotic cell, but can we ever find direct evidence of this transformative event? 🦠 🚶‍♂️

This was a Stentor timelapse we made earlier this week from her trip to Boston (which she also had to crowdfund). She was magically able to locate one ‘on demand’ despite that I very rarely find one in Boston. She also brought me samples from all the way up the east coast. #sciart #microscopy

just a lil cytoplasmic streaming for your Monday 😌 #protistsonsky

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We tested the efficacy of semi-permeable capsules to capture protists from cultures and environmental samples using the Onyx from @atrandi.bsky.social. Tremendous effort from everyone in the lab and led by Marco Fantini and Nik Brask - check out the videos here: www.biorxiv.org/content/10.6...

Just was reading today in Cavalier-Smith's autobiography (DOI 10.5281/zenodo.18733366) on his studies of nucleomorphs, and that it is still unclear what was the red algal donor. He would be glad to read this, I am sure!

maybe my favorite thing on the internet: neal.fun/deep-sea/

Can anyone help to identify the genome? 😄

Ever wanted to see how a coral skeleton grows? In this paper (led by: @jtrendbio.bsky.social) www.sciencedirect.com/science/arti... we use Live CT, a method of scanning live organisms using microCT, to visualise how the skeleton grew over about one month.

whoa. stunning siphonophore by @schmidtocean.bsky.social ! youtube.com/shorts/G218j...

Meet Hexatilemonas jangsaensis a new uncultured apusomonad clade by Jeong et al. doi 10.1111/1462-2920.70282. #protistsonsky. Mark the trunk 🐘 (sleeve around base of flagellum) and laterally consumed bacterium in 🟥 .

and you know what to do #protistsonsky

I raise this glass for #protistsonsky 🍸🥚

Hello epithelia enthusiasts! I’m @inesfournon.bsky.social and I study epithelial mechanics in sea anemones 🪼 Did you know epithelial cell extrusion had never been described outside bilaterian animals before? Well… not anymore 👀 Read ⬇️🧵1/9

#plankton sample teaming with nauplius larvae, copepods and cladocera. On the bottom of the jar #cyanobacteria #freshwater #citizenscience

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

Madness. A bacterium with a 10kb genome, lost replication initiation, translation.., relies on symbiotic host. www.nature.com/articles/s41...

Every day is a good day for sharing one of the most useful papers about research data ever written. PLEASE get your people to understand and follow this advice. www.tandfonline.com/doi/full/10....

Living patescibacterial (CPR) cells are a rare sight! Meet Strigamonas methylophilicida, a parasite of methylotrophic proteobacteria we just described in our latest paper: doi.org/10.1128/mbio...

Finally, how can we discover microbial symbioses in the ocean? A single-cell omics approach in combination with machine learning can automate the discovery process www.biorxiv.org/content/bior... #EESSymbiosis

Last talk for the day, @floravincent.bsky.social on diatomes' symbioses. How can we study them in natural environments? Expansion microscopy together with immunolabeling can give a high-resolution picture. See more here www.cell.com/current-biol... #EESSymbiosis

I was looking for new materials to add to my nematode lecture and stumbling up some highly explicit worm porn, starring a pair of Caenorhabditis elegans. 🧪 From here: www.wormatlas.org/male/musclei...

My new spiritual eukaryote is ciliate in Si helmet swimming towards North pole ⚔️. Definitely an amazing reading from Bolzoni et al. "Magnetoreception in a freshwater ciliate arises from endosymbiosis." 10.1038/s41467-026-70462-8 for #protistsonsky

In a study led by @choannaflagellate.bsky.social and @evocellbio.bsky.social using samples from a local mudflat in Maine, we found evidence of a new lineage of #protistsonsky that helps fill in gaps in our understanding of breviate (+Obozoa) mitochondrial evolution. www.bigelow.org/news/article...

My friends in the Life of Retaria group decided to make a podcast! In the first episode, they interview @fabnot.bsky.social about his journey as a scientist. I loved the first episode, hope you do too! @juliemeilland.bsky.social @sandinmm.bsky.social et al. thelifeofretaria.github.io/podcast.html

A new mechanism for “RNA memory”! This time in Planaria! (Here's a video of a Planarian with mulitple heads, one of the heritable phenotypes we studied). This work summarizes >10 years of research and is an amazing collaboration with the labs of Jochen Rink and Omri Wurtzel labs. Read thrad below👇

I see that footage all over the BSky, I am also amazed, reposting gladly. Would be really interesting to have more than "Foram" lable (can it be not foram? 🫢). Which of 4Kish extant forams? Globigerinid? Can we narrow further with size? We are #protistsonsky! Lets do some expert work if we can 🙂

Description of the new Marine fungus that kills harmful algae Full article: Algophthora mediterranea, gen. et sp. nov.: Novel dinoflagellate- and diatom-infecting generalist marine chytrid from the Mediterranean Sea share.google/VdemEElvkl7c...