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Posts by Théotime Grohens

Brief fun survey from Jessica, Andrew & myself:

If you are a faculty member, research scientist, postdoc, or senior Ph.D. student in any area of science, please take five minutes and fill it out. We’ll share the results widely along with some reflections.

docs.google.com/forms/d/e/1F...

1 week ago 52 52 6 5
Image issue de l'article. Une série de photos de plantes forme un cadre autour du texte suivant :
PlantNet en quelques chiffres
Application disponible en 54 langues
1,3 milliard d'images analysée depuis le lancement en 2013
85 000 plantes recensées dans l'application
Plus de 1 400 publication scientifiques ont utilisé des données PlantNet

Image issue de l'article. Une série de photos de plantes forme un cadre autour du texte suivant : PlantNet en quelques chiffres Application disponible en 54 langues 1,3 milliard d'images analysée depuis le lancement en 2013 85 000 plantes recensées dans l'application Plus de 1 400 publication scientifiques ont utilisé des données PlantNet

Avez-vous déjà utilisé @plantnet.bsky.social ?

Cette application permet d’identifier facilement des plantes. Mais c’est aussi un programme de recherche participative précieux pour les scientifiques !

6 days ago 16 6 2 0
Photo of a gray 3D-printed tooth, obtained with an in silico model of tooth morphogenesis.

Photo of a gray 3D-printed tooth, obtained with an in silico model of tooth morphogenesis.

Many thanks to my colleague who 3D printed one of my evolved tooth shapes — looking forward to many fun ones to play with! 🦷🦷🦷 #EvoDevo #Tooth #ToothMaker

6 days ago 0 0 1 0
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A paper plagiarizing my JTB article

www.sciencedirect.com/science/arti...

has been officially retracted in Physica A

www.sciencedirect.com/science/arti...

Grateful to the editors for taking this seriously. 1/3

1 week ago 32 9 2 1

« world leadership goes through investing in research and science »… France is clearly shooting itself in the foot (again) by announcing new major budget cuts with immediate effects on all @cnrs.fr institutes! 😩

1 week ago 7 9 0 0
Trump administration orders dismantling of the U.S. Forest Service Late Tuesday afternoon, with the subtlety of a wrecking ball and the morality of a foreclosure notice, the Trump administration announced the most devastating attack on the U.S. Forest Service in the agency’s 121-year history. Not a budget cut. Not a policy shift. Not a “reorganization.” An execution.

“They’re destroying more than fifty research facilities..labs that house decades of irreplaceable long-term science, the kind you literally cannot restart once it’s gone. And they’re replacing all of it..with fifteen political appointees”

www.hatchmag.com/articles/tru...

1 week ago 666 526 39 42

Very cool!

1 week ago 1 0 0 0
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UW graduate student deported through SEA as protesters demand answers A union representing University of Washington graduate student workers says Kennedy Orwa’s student visa was rescinded without explanation.

Our PhD student Kennedy Orwa, who studies applications of AI to health care, was hastily deported today to Kenya along with his 13-year-old son without opportunity to speak to legal counsel.

King 5 reports that he held a valid visa that was rescinded without explanation.

1 week ago 4159 2280 87 113
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A French coder estimates that using Claude Code will account for 1 tonne of CO2 over a year - 10% of the average French individual carbon footprint.

We have never encountered emissions-intensive software like this, ever before (with the sole exception of Bitcoin)

www.linkedin.com/posts/gwitte...

1 week ago 437 235 16 23
Science Shouldn't Be Political - Journal of Academic Ethics Journal of Academic Ethics - Scientific institutions increasingly engage in politics through candidate endorsements and public advocacy, raising questions about the neutrality of scientific...

I’ve been warned that by engaging in politics, I might undermine myself as a scientist. Or worse, reduce the trust that people have in me or scientists as a whole.

This latter point is the thesis of a recent article by Byron Hyde: link.springer.com/article/10.1...

I disagree for multiple reasons.

2 weeks ago 270 75 19 27
List of Sharif University of Technology people - Wikipedia

Sharif University in Tehran was just bombed

Founded in 1965, it is one the most elite science and engineering institutions in the world. Alumni include the mathematician Maryam Mirzakhani, first woman to win the Fields Medal

Here is the list of other alumni

en.wikipedia.org/wiki/List_of...

2 weeks ago 210 118 6 12
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American and Israeli missiles hit Sharif University in Tehran tonight. Often called #Iran’s MIT, the institution has been home to some of the country’s best and brightest minds in science, technology, engineering, and mathematics since 1966. 1/2

2 weeks ago 430 254 12 44

“When scientists ‘rack their brains’ to approach computer science differently

At a conference held at the University of Luxembourg in March, around fifty researchers gathered for three days to discuss some thirty concrete examples of ‘undone science’.”

David Larousserie reporting on #UndoneCS

2 weeks ago 0 1 0 0
A slide with many flowers of different shapes and colors

A slide with many flowers of different shapes and colors

Having a great time at the BioSymposium meeting with the 4 biology labs at @ensdelyon.bsky.social!
Thanks all for the great presentations and pictures!!

2 weeks ago 0 0 0 0

thanks!

2 weeks ago 0 0 0 0
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Recours aux zones à régime restrictif au sein des laboratoires de recherche publics

Perles du Sénat. Le ministre de l'ESRE :
« je veux rappeler (...) qu'il n'y a là aucune discrimination politique [dans les refus d'embauche en ZRR]. La preuve en est que l'immense majorité des ZRR concerne les sciences dites dures, en particulier les technologies. »
www.senat.fr/questions/ba...

3 weeks ago 4 5 2 0
IMPACT OF PARENTHOOD ON UNIVERSITY EMPLOYMENT. Line graph shows how the probability of holding a research position changes from four years before to seven years after having children.

IMPACT OF PARENTHOOD ON UNIVERSITY EMPLOYMENT. Line graph shows how the probability of holding a research position changes from four years before to seven years after having children.

Becoming a parent is much more detrimental to women’s academic careers than it is to men’s

Read the full story: go.nature.com/4v4rxmQ

3 weeks ago 249 156 6 39
Concours normalien étudiant Sciences - ENS - Enseignement Découvrez le Concours normalien étudiant ! ! Les candidatures 2026-2027 sont ouvertes depuis le 9 mars 2026, jusqu'au 24 avril 2026 (…)

Le Concours Normalien Etudiant du département de Biologie (ENS-PSL) est ouvert !!!!

Ce concours d'entrée à Normale Sup s'adresse aux étudiant·es de L2 ou L3 issu·es des Universités.... N'hésitez à faire passer l'information.

(www.enseignement.biologie.ens.fr/spip.php?art...)

3 weeks ago 3 3 0 0
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🧐 Baisse du nombre d'offres d'emploi (post-doctorants, ingénieurs, permanents ou temporaires) en 2025.

🫵 Besoin de vous pour comprendre les raisons de cette diminution via ce sondage : grist.numerique.gouv.fr/o/docs/forms...

📎 Bilan plus détaillé : www.sfbi.fr/blog/article...

3 weeks ago 5 9 0 1

Nice graphs! Where did you get the numbers?

2 weeks ago 1 0 1 0
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Cultural macroevolution of musical instruments in South America - Humanities and Social Sciences Communications Humanities and Social Sciences Communications - Cultural macroevolution of musical instruments in South America

I think there's work on musical instruments that might be relevant to you, such as www.nature.com/articles/s41... or pmc.ncbi.nlm.nih.gov/articles/PMC...?

2 weeks ago 1 0 1 0

I don't think people fully appreciate how apocalyptic things are for US science. I haven't had any new funding since 2024, but I'm still ok since typical grants are for three years. This means next year I will be completely out of funding and will have to fire everyone in the lab. It's not great.

3 weeks ago 5375 2389 43 79
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Fantastic news -- how about scientific journals now?

3 weeks ago 2 0 0 0
Inter-institutional Master in evolutionary genetics

🎓 Applications open for Master 2 EvoGEM which provides theoretical and methodological training to interpret evolutionary patterns from genomic data.
✔️ Evolution, Maths, Population and quantitative genetics, Phylogenetics
✔️ Tutored projects
✔️Fully taught in English
📍Paris
evogem.fr
📢 Please share!

3 weeks ago 7 7 0 1

I agree, to me this shows that the structure/connectivity of the fitness landscape, as given both by the set of genotypes and the mutational operators, is key to understanding trajectories

4 weeks ago 1 0 0 0
A CV of grants that were not funded and jobs applied for but not offered

A CV of grants that were not funded and jobs applied for but not offered

A CV of grants that were not funded and jobs applied for but not offered

A CV of grants that were not funded and jobs applied for but not offered

A CV of grants that were not funded and jobs applied for but not offered

A CV of grants that were not funded and jobs applied for but not offered

A CV of grants that were not funded and jobs applied for but not offered

A CV of grants that were not funded and jobs applied for but not offered

In academia, we're good at talking about successes, but sweep unfunded grants & unsuccessful job apps under the rug. It can be a tough road, filled w/ failure*

For anyone discouraged about the process, here's my failure CV

#AcademicSky 🧪

*None are really failures if you learn from them

1 month ago 119 25 5 7
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Getting higher on rugged landscapes: Inversion mutations open access to fitter adaptive peaks in NK fitness landscapes Author summary Ninety years ago, Wright translated Darwin’s core idea of survival of the fittest into rugged landscapes—a highly influential metaphor—with peaks representing high values of fitness sep...

Super interesting work!
If I understand correctly, in your model mutations are only bit flips in the genotype; if you haven't looked at it, considering other mutations can also influence evol. trajectories by changing the connectivity of the fitness landscape (see journals.plos.org/ploscompbiol...)

4 weeks ago 2 0 1 1
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🚨 We're hiring!
Postdoctoral positions in modeling of development and evolution at @stockholm-uni.bsky.social & @scilifelab.se

Focus: dynamical systems, time-series, phylogenetics, dimensionality reduction

📍 Stockholm
🕒 2+1 years
🔍 Details: su.varbi.com/en/what:job/...

Please share!

1 month ago 22 19 1 3
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The danger of legitimising hate through academia

This is excellent: “The question is not whether Cofnas should be permitted to hold his views. The question is whether a public research university in Belgium should be lending institutional credibility to those views, funding their dissemination, and providing them the cover of academic legitimacy”

1 month ago 37 23 1 2
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Rector Petra De Sutter stands firm on UGent decision to host 'race realist' philosopher "I understand the outrage and concern and take it seriously," she said. "The statements referred to are hurtful and disturbing to many people. They affect me as well."

race realists are so insidious... how can he even be getting jobs and not laughed out of the room?

> Cofnas is not conducting legitimate academic research into race and intelligence but instead spreading pseudoscience.

www.brusselstimes.com/2020013/ughe...

1 month ago 60 20 6 3