If you can only visit one place at Harvard, make it the glass flower exhibit at the Museum of Natural History. 4000 models, 847 species. Commissioned by the university for teaching botany and created by the Czech father and son Leopold and Rudolf Blaschka 1887 through 1936.

How does the strength of genetic drift evolve over long times? New preprint out 👇 www.biorxiv.org/content/10.6...

New paper out in PNAS!!! 🎉 Do more plasmid copies mean faster evolution? 🧵 Dive into the story www.pnas.org/doi/10.1073/...

Interested in eco-evolutionary feedbacks? Microbial experimental evolution? Pleiotropy? Filamentous phages?? Check out our latest preprint, now up on BioRxiv! biorxiv.org/content/10.6... For a quick summary, peep the thread below...🧵 (1/10)

Bacteria chromosomes contain Genomic Islands that provide virulence, antibiotic resistance, MGE-defence,... They transfer between cells, but the mechanism of most remains elusive. Here we explore the conjugative capacity of these mysterious Genomic Islands. www.biorxiv.org/content/10.6...

What is the best strategy to win any contest? Eliminate your opponents of course. Recently, my friend @fernpizza.bsky.social showed how plasmids compete intracellularly (check out his paper published in Science today!). With @baym.lol, we now know they can fight. www.biorxiv.org/content/10.1...

We built GenoPHI: a machine learning workflow that predicts phage-host interactions at strain level. This could help rapidly select phages to treat drug-resistant bacterial infections or for microbiome engineering without exhaustive lab testing. www.biorxiv.org/content/10.1...

Super excited that the bulk of my PhD work is now preprinted! Here we used whole-community competition, or coalescence, experiments to quantify selection acting on genetically diverged strains within larger communities. (1/n) www.biorxiv.org/content/10.1...

Excited to share pt. 2 of my blog on genotype-phenotype maps. We are now quite good at predicting protein sequence -> structure. How did this happen? Why was it possible? Can we make similar predictions for protein function, whole-cell phenotypes, or community function?

Dear colleagues! @davidmccandlish.bsky.social and I are serving as guest editors for the new special issue of GENETICS on fitness landscapes: doi.org/10.1093/gene... Submissions are due on March 18, 2026. Please spread the word! And reach out if you have questions.

I made a video about my new paper. I hope you enjoy it! vimeo.com/1113132836?s...

The Church Evolution Laboratory (CEL@NYU) will be official as of Sep 1st: shchurch.github.io. We are recruiting at all levels, including a postdoc to work on evolutionary patterns and processes via comparative genomics in Hawaiian Drosophila. Please share widely!

Excited to share a new preprint w/ the Sonnenberg lab, led by Matt Carter, @zzzhiru.bsky.social & @mattolm.bsky.social. We analyzed the microbiomes of two non-industrialized populations from opposite sides of the globe to try to reconstruct the recent evolutionary history of our gut microbiota.

I'm very excited to share something I've been working on off-and-on for a long time now: a new blog about genotype-phenotype landscapes! The first post is a Gödel-Escher-Bach-style dialogue to introduce the topic. If you like it please share/repost! open.substack.com/pub/topossib...

Great big review, and I particularly love the consistent and simple visual language in the figures!

Published in Nature today! Here, we sought to systematically ask how natural community's metabolism changes with the environment. A simple consumer-resource model can predict N-cycle metabolism (nitrate use) and, more importantly, the mechanism behind its change. www.nature.com/articles/s41...

New Preprint!! Alejandro González-Delgado accomplished a major feat on this one: ported retron recombineering, which we love so much in E. coli, into 14 new bacterial species via a massive collaborative effort involving 9 labs! www.biorxiv.org/content/10.1...

Excited to share our study on sailing siphonophores, AKA bluebottles or man-o'-war! 🌊 we received hundreds of samples from scientists around the world, part of a huge effort to sequence genomes and test for multiple species 🧬 out today in @currentbiology.bsky.social doi.org/10.1016/j.cu... 🦑🧪📌

Why is sex so common if it's so costly? Super excited to share our new preprint “Sex decreases the pleiotropic costs of local adaptation”, where we bring a new angle to this age-old evolutionary question. Co-led by Parris Humphrey, in Michael Desai's lab. Short thread here: (1/n)

Third preprint! – We use community-function landscapes to rationally design communities for bioremediation in soils! Spoiler - it works! Led by Mahmoud Yousef, with @kiseokmicro.bsky.social, J. Tang, V. Charisopoulos, B Willett. @nitmb.bsky.social, NSF, MSTP UChicago. www.biorxiv.org/content/10.1...

Hi y'all! Know any recent or upcoming college graduates who are interested in microbiology and looking for (full-time! paid!) research experience? Please point them towards RaMP! Darian Doakes and I will be co-mentors for an MGE project that I think is going to be really cool. Apps+recs due 5/25

🚀 New proposal from Align! The experimental platform aims to standardize #microbial #phenotyping & support predictive modeling. 🦠 Capturing data across 1k strains & 1k conditions; using BacterAI; generating high-quality datasets for ML @jensen_lab

Yo, micro/evo/qbio/physics of living systems/astrobiology/renegade cell bio folks- if you are interested in starting a feed, reply/repost this. Let's get the crew back together!

Is it “winner-takes all” when the simplest living things compete? Check out my fresh publication on phage coexistence in Science and a thread below🧵 www.science.org/doi/10.1126/...

Do mutations that drive evolution improve many traits or few? Does this change over the course of evolution? Excited to share our work in PLOS Biology exploring these questions in the first 2 adaptive steps w/ Yuping Li, @gsherloc.bsky.social, @petrovadmitri.bsky.social 🧵 doi.org/10.1371/jour...