🚀Excited to share our latest efforts in bringing highly multiplexed whole-mount imaging to intact multicellular systems! Shield-4i: an integrated platform to study multi-scale information flow in 3D embryos and embryo-like systems. Kudos to @rhornb.bsky.social for this major milestone in the lab!🚀

Excited to share that our work on ‘How the gut gets patterned during regeneration’ is out now cell.com/cell/fulltext/S0092-8674(26)00696-3 Thanks a lot to @priscaliberali.bsky.social @silviabarbiero.bsky.social @davidbrueckner.bsky.social @ehannezo.bsky.social and all co-authors! 🧵

Annual killifish continue to surprise us: they make neutrophils before almost every other cell type, even before gastrulation. Neutrophils usually arise from the lateral plate mesoderm (forming in cyan), but in killifish they are already patrolling around the embryo in gold. tinyurl.com/killiphil

🧰 New tool alert! ⚙️ #MorphoGrad, an open-source toolbox for simulating reaction–diffusion systems in 1D and 2D tissues, with cell-to-cell parameter heterogeneity & graphical user interface. No heavy coding required. Explore complex morphogen gradient models interactively. doi.org/10.1016/j.xp...

How do sperm and egg fuse? Surprisingly, we still don’t fully know… Our field has uncovered many pieces of the fertilization puzzle, but not how they fit together. We identify ✨ SPARK ✨ - a conserved sperm complex that couples sperm-egg binding to fusion. tinyurl.com/34cm4xat Read on! 🧵👇

Summer is coming, but how will you maximize your picnic space when everyone else is doing the same? In our new preprint, we show that branched cells may have an elegant solution: As cells grow and repel neighbors, they don't just cover space, but reach a hidden order called hyperuniformity! 🧪⚛️

Welcome 2026 @dev-journal.bsky.social Pathway to Independence (PI) fellows Maëlle Bellec, @iamzico.bsky.social, @evhealy.bsky.social, @josepmercadal.bsky.social, @nikhil-mishra.bsky.social, Jessica Perochon, Yamini Ravichandran & Margherita Zamboni More info journals.biologists.com/dev/pages/pi...

New Preprint alert!🚨 Super excited to share my postdoc work now on BioRxiv. How does PRC2 loss lead to developmental failures? We combined rapid protein degradation with TLS embryoid models to uncover temporal and lineage-specific dependencies 🧬. Preprint: doi.org/10.64898/2026.04.18.719361

We tracked a zebrafish tail tip for 30h of light-sheet imaging. It didn’t exist at t=0. LiLiTTool: CoTracker3 + object detection → real-time microscope steering. 3D, multi-ROI, open source. www.biorxiv.org/content/10.6... #bioimaging #lightsheet thanks @jytinevez.bsky.social

Very happy to see this out. 👏 @yinanwan.bsky.social Bogdan Bintu and team. Whole-embryo spatial transcriptomics at subcellular resolution from gastrulation to organogenesis | free link Science www.science.org/eprint/5MHTM...

We’re excited to share our latest preprint on Fractal: our approach towards FAIR bioimage analysis at scale with OME-Zarr-native workflows. Fractal defines interoperable tasks on OME-Zarr and provides a platform for TB-scale image analysis. (1 / 10🧵) www.biorxiv.org/content/10.6...

Join us in Vienna for the European 🐠 🐟 meeting👇👇we are excited to welcome researchers working with all fish models in Europe and beyond!We provide travel fellowship opportunities to make the meeting as inclusive as possible 😊

Happy to share this work from Carlos Camacho de la Maccora that reveals how rates of posterior progenitor addition and anterior vacuolation are balanced across the notochord. With Alberto Ceccarelli and @osvaldo-chara.bsky.social we present a model of long-range communication to provide robustness.

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

it's always fun to look back at phd data in @heisenbergcplab.bsky.social - here a wave of acentrosomal microtubule asters forming in maturing zebrafish oocytes, bringing the cytoplasm into motion...

Happy to highlight our collaborative work from our @ijmonod.bsky.social team with @destriano.bsky.social, B. Goyeau and M. Chabanon. Cytoplasmic crowding acts as a porous medium that hinders macromolecular diffusivity. Plus: a clever way to measure cell volume. www.pnas.org/doi/10.1073/...

In @natphys.nature.com, they demonstrated that the zebrafish embryo “reads” and correctly interprets the zygote’s geometry during the initial few minutes of its existence. They discovered ... 📷 C.-P.Heisenberg, N. Mishra, Y. I. Li (from left to right).

Organelles do NOT have a single uniform pH. And if you think they must, because “protons diffuse fast,” this paper is for you. A thread on why that assumption is wrong; and what we found instead. 🧵 1/n

The lab’s first pre-print! We investigated how growth-inducing Erk activity waves are regulated in regenerating zebrafish scales. We discovered that Erk waves are followed by waves of expression of their own inhibitors, as predicted by excitable waves theory. tinyurl.com/26r2cmpj

Happy to present the final version of our Cadherin and gastruloid manuscript, online at @cp-cellreports.bsky.social. www.cell.com/cell-reports... Initially in BiorXiv (www.biorxiv.org/content/10.1...) 1/12

🎉 I am very glad to share that our paper on the rapid isotropic light-sheet microscope has just been published in Nature Biotechnology @natbiotech.nature.com. 🔗 Read the full article: www.nature.com/articles/s41...

Why do whales and elephants have much lower rates of cancer than expected? "Species with a lower cancer prevalence and mortality risk are those with a higher presence of cooperative and caring habits, while the opposite is found....:" www.science.org/doi/10.1126/...

#ZebrafishZunday: Cytoplasmic (or ooplasmic) streaming leads to the segregation of embryo from yolk granules. Credit to @shamipourshayan.bsky.social & @heisenbergcplab.bsky.social. 🧪

@sushantbangru.bsky.social and @rdiegmiller.bsky.social new review on regeneration is out in Nature Reviews Molecular Cell Biology. A fun piece to write and another great collaboration with @kenposs.bsky.social.

We spy the latest works from the labs of @marymullins.bsky.social, Margot Kossman Williams (x2), @bruceappel.bsky.social, Vladimir Korzh, @ssumanas.bsky.social, @campaslab.bsky.social, @kenposs.bsky.social, @emiliapsantos.bsky.social among others! Do check it out!

How can we organize current theoretical approaches for developmental biology - from information to dynamical systems & GRNs - into a common framework? We propose to think along Marr's 3 levels: computational problem, algorithm, implementation Check out our review: arxiv.org/abs/2510.24536

Interested in polarity and mechanics during epithelial morphogenesis? Considering joining us! Students to be hired initially as Research Associates. Postdocs encouraged to obtain fellowship, and we help/train you to do that. Apply to tinyurl.com/y6x489t5. Deadline Dec 15. Please repost!

I’ll be speaking about the mechanical development of crocodile and tortoise head scales next Wednesday at 4pm for the @tlmcambridge.bsky.social seminar series. Subscribe to the mailing list to hear more about my work, and that of @maltemederacke.bsky.social! lists.cam.ac.uk/sympa/subscr...

Very happy to share our latest work extending iterative immunofluorescence to in toto imaging of early zebrafish embryos (3D-4i), integrated with a 3D-dedicated image analysis pipeline! 🐟🔬📊 Huge kudos to Max Hess for this PhD milestone! 💪 @lucaspelkmans.bsky.social shorturl.at/cO0u7 Let's zoom in!

Vertebral skeletal diversity in mammals is remarkable. How do the differences between vertebral size and shape develop and evolve? See how we tackled this question in our paper published in @natcomms.nature.com today!

Today my @nytimes.com colleagues and I are launching a new series called Lost Science. We interview US scientists who can no longer discover something new about our world, thanks to this year‘s cuts. Here is my first interview with a scientist who studied bees and fires. Gift link: nyti.ms/3IWXbiE

New preprint from the lab! We discovered a transient fluidization in the basal region of human forebrains by tracking microdroplets in cerebral organoids.This “basal fluidization”, absent in gorilla and mouse, may contribute to greater surface expansion in human forebrains 1/ doi.org/10.1101/2025...

🧠 Join us @uzh-ch.bsky.social ! We are a new lab looking for PhDs, Postdocs & Master’s students interested in studying how human neural systems emerge & go awry using brain organoids, light-sheet imaging & genomics. 🚀 Deadline for LSZGS 1st Nov! www.lifescience-graduateschool.uzh.ch/en.html.

First, check out my recent bioRxiv preprint w/ @oweinerlab.bsky.social: www.biorxiv.org/content/10.1... We find contractility shifts the proportion of implantation-competent embryos from young and aged females. Keep reading this for more info!

Our latest preprint! Into morphogenesis, Yap, ECM, signaling, vertex models, feedbacks/robustness? There is something here for everyone. We discovered a positive feedback loop that extends inner ear canals, and a built-in mechanism that shuts it down when morphogenesis is done. tinyurl.com/464wsjhd

🚨 New paper out in @pnas.org! 🚨 We show that self-generated gradients allow heterogeneous cell mixtures to co-migrate efficiently over long distances —while optimizing their physical interactions! (See below for 🧵) www.pnas.org/doi/10.1073/... 🧪

(1/10) I am excited to finally share our work on avian left/right symmetry breaking with you. We reveal a tissue-scale active torque dipole generated at the Hensen’s node, thanks to crazy experiments by Julia @juliapfanzelter.bsky.social and some analysis by me. doi.org/10.1101/2025...

This postdoc position is still open! Apply if you want to come work with us on asymmetric cell divisions in spiralian embryos! postdocs.stanford.edu/prospective/...

🚨 Second preprint of the week! We uncover the multiscale dynamics of active viscoelastic buckling in epithelia. We harness these mechanical instabilities for synthetic morphogenesis. Led by @onenimesa.bsky.social 🙌. Theory by Marino Arroyo etal. @ibecbarcelona.eu www.biorxiv.org/content/10.1...

How to turn a layer of fibroblasts into a tulip 🌷? Check out our new pre-print on shape-programmable living surfaces. Led by @pauguillamat.bsky.social‬ www.biorxiv.org/content/10.1...

📣 Symposium 2050 at the University of Zurich Join us for this event exploring emerging directions in life sciences, presented by a diverse group of leading experts. Free and open to all! More info/register: ema.uzh.ch/RTTHF

That is a great reason for a first post! With a few days of delay, I am proud to share that my postdoc work at the @heisenbergcplab.bsky.social has finally been published on @cp-cellreports.bsky.social doi.org/10.1016/j.ce... Now a small (or maybe not) thread about the work!

Stoked to present our latest, superbly led by Chris et al & @torres-sanchez.bsky.social We tackled a fundamental problem – how tissues are patterned during development – found that geometry-constrained ECM fractures pattern the myocardium in the vertebrate heart 1/n www.biorxiv.org/content/10.1...