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Jean-Baptiste André

@jbaptistandre.bsky.social
890 followers 690 following 40 posts

Evolutionary biologist studying human behavior and societies through adaptationist reasoning. DR CNRS @ Ecole Normale Supérieure-PSL & Institut Jean Nicod.

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Reposted by Jean-Baptiste André
Julien Lie-Panis @jliep.bsky.social · 02/09/2026
Really enjoyed this commentary by Jörg Gross on our paper on rigid rules and reputational ambiguity — turns out we’ve been thinking about some of the same problems! www.pnas.org/doi/abs/10.1...
pnas.org
PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
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Daily Neuron @dailyneuron.bsky.social · 10/07/2026
The strictest moral rules ignore context on purpose, and the reason comes down to how easily a good excuse can be faked. #cogsci dailyneuron.com/rigid-moral-...
dailyneuron.com
The Rules We Treat as Sacred Are Really Built on Distrust - Daily Neuron
The strictest moral rules ignore context on purpose, and the reason comes down to how easily a good excuse can be faked.
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Jean-Baptiste André @jbaptistandre.bsky.social · 09/07/2026
Very happy and proud to see this paper published, led by an exceptionally talented young researcher.
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Julien Lie-Panis @jliep.bsky.social · 09/07/2026
Why do societies rely on rigid moral rules? Don't lie. Keep your promises. Don't steal. We all recognize there are good reasons to make exceptions. So why are moral rules so often categorical? Our new paper proposes an answer. 🧵
Screenshot of article title page, "Why human societies adopt rigid moral rules"
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Claudio Tennie @ctennie.bsky.social · 09/03/2026
Baumard and André (B&A) responded to the (many) comments that their original piece (www.sciencedirect.com/science/arti...). Their response is linked in Alberto's post. I just got a pdf copy and will read it now; this will be a thread with my first thoughts...
sciencedirect.com
The ecological approach to culture
The prevailing view in the literature treats cultural dynamics as fundamentally distinct from other ecological processes—governed by a second system o…
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Alberto Acerbi @acerbialberto.com · 09/03/2026
Baumard & André answer to the commentaries to "The ecological approach to culture". An important conversation for everybody interested in application of evolutionary theory to culture. www.sciencedirect.com/science/arti...
sciencedirect.com
Evolved psychology, eco-phenotypic feedbacks and the social construction of culture
This paper responds to more than twenty commentaries on The Ecological Approach to Culture, written by researchers in evolutionary biology, behavioral…
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Jean-Baptiste André @jbaptistandre.bsky.social · 11/03/2026
🧵 1/4 Last year, Nicolas Baumard and I published a target article in EHB, where we propose that cultural phenomena emerge from feedbacks between evolved psychology and ecological legacies, the same mechanisms at work in any ecosystem: www.sciencedirect.com/science/arti...
sciencedirect.com
The ecological approach to culture
The prevailing view in the literature treats cultural dynamics as fundamentally distinct from other ecological processes—governed by a second system o…
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Jean-Baptiste André @jbaptistandre.bsky.social · 23/02/2026
Last call! Applications close tomorrow. Apply to the Master’s program in Cognitive Science at @ENS_ULM, @psl_univ, and @EHESS_fr. 🗓 Deadline: February 24, 2026 (23h59 Paris time)
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Julien Lie-Panis @jliep.bsky.social · 13/02/2026
New @aeon.co essay just out! On how institutions let us scale trust and cooperation - and when things start to unravel. Big thanks to editor Sam Dresser. For the more technical version, see thread & paper below👇
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La Société Francophone de Primatologie @lasfdp.bsky.social · 13/02/2026
#voxprimato #master #sciencescognitives inscription au Master de sciences cognitives de l'ENS / UPS / EHESS de Paris, avec spécialité en Psychological science, Cognitive neuroscience, Cognitive modeling, neurotheory & AI, Social sciences & humanities, Philosophy, Linguistics date limite 24/02/2026 👇🏽
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Jean-Baptiste André @jbaptistandre.bsky.social · 11/02/2026
Only a few days left to apply to the Cognitive Science Master’s. !!!! Deadline: Feb 24 !!!!
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Jean-Baptiste André @jbaptistandre.bsky.social · 19/01/2026
1/ 📢 Come study cognitive science in Paris! The Master’s program in Cognitive Science at @ENS_ULM, @psl_univ, and @EHESS_fr is now accepting applications for the next academic year. 🗓 Deadline: February 24, 2026 💻 Apply here: master-cognitive-science.ens.psl.eu/en/applicati...
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Jeanne Bovet @jeannebovet.bsky.social · 11/12/2025
Don’t forget to submit your #EHBEA2026 abstract before Dec 15! See you in beautiful Leiden in April! @ehbea2026.bsky.social @ehbea.bsky.social
media.tenor.com
a minion from the movie despicable me is standing on a wooden floor with a red light on its head .
ALT: a minion from the movie despicable me is standing on a wooden floor with a red light on its head .
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Franck Ramus @franckramus.bsky.social · 23/10/2025
[PhD track in Cognitive Science at Département d'Études Cognitives, ENS-PSL] Applications are now open for the PSL PhD Track 2026–2027 in Cognitive Science! This 5-year integrated program is aimed at talented students eager to tackle the scientific challenges of the future and to start shaping 1/2
psl.eu
PhD track in cognitive science | PSL
Faire un don
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Jan Pfänder @janpfa.bsky.social · 15/10/2025
Help us strengthen trust in climate scientists in the US! Join our megastudy 👇
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EHBEA 2026 @ehbea2026.bsky.social · 10/10/2025
🚨𝗔𝘁𝘁𝗲𝗻𝘁𝗶𝗼𝗻 𝗲𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝗲𝗻𝘁𝗵𝘂𝘀𝗶𝗮𝘀𝘁𝘀! www.ehbea2026.com is now live for our 2026 European Human Behaviour & Evolution Association (EHBEA) conference in Leiden (NL🇳🇱) Check for 𝗮𝗯𝘀𝘁𝗿𝗮𝗰𝘁 𝘀𝘂𝗯𝗺𝗶𝘀𝘀𝗶𝗼𝗻, first 𝗽𝗹𝗲𝗻𝗮𝗿𝗶𝗲𝘀 & the [𝗔𝗜]𝘃𝗼𝗹𝘂𝘁𝗶𝗼𝗻 𝘁𝗵𝗲𝗺𝗲 𝘁𝗿𝗮𝗰𝗸! 🗓️ 14–17 Apr 2026 | CBEN pre-conf 14 Apr 📍Pesthuis #EHBEA2026
ehbea2026.com
Overview | EHBEA2026
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EHBEA @ehbea.bsky.social · 07/10/2025
EHBEA is looking for new PRESIDENT and SECRETARY for 2026-2029! 👀 If you know of anybody who could represent EHBEA, nominate them as president! If you know with good organisational skills, nominate them as secretary! DEADLINE: 16/12/2026 HERE IS THE FORM 👇 docs.google.com/document/d/1...
docs.google.com
EHBEACommitteeNominationForm_Pres_Sec.doc
EHBEA Committee 2026-2029: Nomination Form The EHBEA Steering Committee is calling for nominations for the following open committee positions for 2026-2029. You are invited to nominate one or more c...
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Jean-Baptiste André @jbaptistandre.bsky.social · 24/09/2025
Ever wanted to read about an old problem almost nobody cares about anymore? Well, I wrote about it. 🧵
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Jorge Peña 🇵🇸 @jorgeapenas.bsky.social · 22/09/2025
📢 Apply to our (2-year) research fellowships at @iast.fr Join a multidisciplinary, interdisciplinary, transdisciplinary, and indisciplinary group of scholars in Toulouse, walkable/cyclable pink city of chocolatines in the South of France. Deadline: November 15, 2025. www.iast.fr/research-fel...
iast.fr
Research Fellowships
Each year, IAST invites applications for post-doctoral Research Fellowships, which offer candidates an opportunity to devote themselves full-time to their research at the start of their careers. Fello...
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Dieter Lukas @dieterlukas.fediscience.org.ap.brid.gy · 08/07/2025
Our #study finds that #male #dominance isn't the norm among #primates, and starts to unravel what shapes flexibility in intersexual power paper (OA) www.pnas.org/doi/10.1073/pnas.25004… press release www.mpg.de/24986976/0630-evan-beyon…
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Alberto Acerbi @acerbialberto.com · 07/07/2025
EHB commentaries on Baumard and André's "The ecological approach to culture" are growing (see "Commentaries" section at the end). Good. www.sciencedirect.com/journal/evol...
media.tenor.com
a man in a red jacket is eating a sandwich
ALT: a man in a red jacket is eating a sandwich
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Rob Sica @robsica.bsky.social · 01/07/2025
"a forest is not treated as the output of a second inheritance system or as a group-level adaptation... culture is not a transmitted substance; it is the structured context that emerges from repeated and overlapping individual actions"
hbes.com
Reconciling Our Three Traditions: Human Behavioral Ecology, Evolutionary Psychology, and Cultural Evolution - HBES
– by Nicolas Baumard & Jean-Baptiste André The evolutionary social sciences are grounded in the idea that evolutionary theory provides a unified framework to explain human behavior, including social n...
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Human Behavior & Evolution Society @humbehevosoc.bsky.social · 30/06/2025
Nicolas Baumard & Jean-Baptiste Andre’s “ecological view of culture” provides an exciting new perspective that links Behavioral Ecology, Evolutionary Psychology, & Cultural Evolution. Read more in their HBES blog post: www.hbes.com/reconciling-...
hbes.com
Reconciling Our Three Traditions: Human Behavioral Ecology, Evolutionary Psychology, and Cultural Evolution - HBES
– by Nicolas Baumard & Jean-Baptiste André The evolutionary social sciences are grounded in the idea that evolutionary theory provides a unified framework to explain human behavior, including social n...
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Jorge Peña 🇵🇸 @jorgeapenas.bsky.social · 24/06/2025
Here, weird guy from X, I fixed it for you: "If a scientific society wants to be welcoming to [...] students & researchers [from the Global South], does it make sense to hold its next annual conference in a country that's notorious for [being located in the Global South]?" The answer is Yes.
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Hugo Mercier @hugoreasoning.bsky.social · 02/06/2025
We have a lovely new paper out, showing that even ignorant people can be very good at recognising who's knowledgeable based on minimal cues
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Edgar Dubourg @edgardubourg.bsky.social · 02/06/2025
We often have to judge who is knowledgeable—precisely when we are not. Can humans really do that? Our new paper in Psychological Science shows that, surprisingly, we can. drive.google.com/file/d/1b15E...
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xavier roberts-gaal @xrg.bsky.social · 20/05/2025
the functional form of moral judgment is (sometimes) the nash bargaining solution new preprint👇
figure 2 from our preprint, reporting the results from two experiments 

we measure moral judgments about dividing money between two parties and manipulate the degree of asymmetry in the outside options each party has

we find that moral judgments track predictions from rational bargaining models like the nash bargaining solution and the kalai-smorodinsky solution in a negotiation context

by contrast, in a donation context, moral intuitions completely reverse, instead tracking redistributive and egalitarian principles

preprint link: https://osf.io/preprints/psyarxiv/3uqks_v1
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Sam Gershman @gershbrain.bsky.social · 19/05/2025
I think the BabyLM Challenge is really interesting, but also feel that there is something fundamentally ill-posed about how it maps onto the challenge facing human children. It's true that babies only get a relatively limited amount of linguistic experience, but...
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Léo Fitouchi @lfitouchi.bsky.social · 06/05/2025
🧵New paper out in Cognition Why do people moralize harmless carnal sins (e.g. gluttony, masturbation)? @danielnettle.bsky.social & I find that these behaviors activate reciprocity-based moral judgment—no need for a distinct "purity" module. 50 days free link: authors.elsevier.com/a/1l18D2Hx2-...
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PCI Psychology @psych.peercommunityin.org · 23/04/2025
The PCI Psychology website is live! psych.peercommunityin.org We're working hard to be ready for launch (planned May 2025) but there's plenty you can do in the meantime to help it along. Go check it out! #psychscisky #scipub
psych.peercommunityin.org
PCI Psychology
Peer Community in Psychology
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Eleanor Power @eapower.bsky.social · 21/04/2025
Two more weeks to apply! Spread the word and reach out with any questions.
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Dr Sam Roberts @samroberts7.bsky.social · 18/04/2025
Many thanks to all organisers of #EHBEA2025 for putting on such an inclusive and welcoming conference! @ehbea.bsky.social @ehbea2025.bsky.social
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EHBEA 2026 @ehbea2026.bsky.social · 17/04/2025
ℹ️ New announcement!! #EHBEA2026 will be in Leiden! Save the date.
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EHBEA 2026 @ehbea2026.bsky.social · 15/04/2025
🧠✨ EHBEA 2025 — Tuesday Highlights ✨🧠 From cultural transmission to chatbots and grandmothers, here's what's coming up on Day 2 (April 15) at #EHBEA2025. A thread 👇 @ehbea.bsky.social #HumanBehaviour #EvPsych #Anthropology #Research #EHBEA
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Olivier Morin @oliviermorin.bsky.social · 10/02/2025
Call for 5-years research fellowships at PSL university! @psl-univ.bsky.social Join the CultureLab team to research computational social science. www.dropbox.com/scl/fi/o5mkp...
dropbox.com
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EHBEA 2026 @ehbea2026.bsky.social · 11/04/2025
🚨 We’re so excited to welcome you to #EHBEA2025 — starting THIS MONDAY in Newcastle! 🎉 We’re opening with a bang 💥: A pre-conference panel on Big Team Science at 2pm! What worked, what didn't & more! 📝 Register: tinyurl.com/RegisterTeam... #TeamScience #HumanBehaviour #EHBEA @ehbea.bsky.social
ehbea2025.com
Home | EHBEA2025
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EHBEA 2026 @ehbea2026.bsky.social · 14/04/2025
Today is the day!! #EHBEA2025 is now here!! 😁🎉 Come find us at registration, which opens at 2pm! Then: - Pre-conference panel on big team science, 2-3pm - Conference opening @330pm - Plenary by Russell Hill @4pm - Reception @5pm Can't wait to see you all today! @ehbea.bsky.social
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EHBEA 2026 @ehbea2026.bsky.social · 12/04/2025
✨️Guess what?!?✨️ We're putting together a starter pack to make it easy to follow EHBEA 2025 presenters and attendees!! 🔥👩‍🔬 Want to be added? Drop a comment below! 👇 #EHBEA2025 #Evolution #HumanBehaviour @ehbea.bsky.social
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EHBEA 2026 @ehbea2026.bsky.social · 14/04/2025
✨️The EHBEA 2025 Starter Pack is Here! ✨️ - Follow #EHBEA2025 conference presenters & attendees! 👩‍🔬👨‍🔬 - Attending EHBEA?? Comment bellow or send us a message to be added! #CoolEvoScience #HumanBehaviour #SharingResearch @ehbea.bsky.social go.bsky.app/83e84Ca
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EHBEA 2026 @ehbea2026.bsky.social · 09/04/2025
Last, but denfinitely not least: 🧭 Code of Conduct We take your safety and wellbeing seriously. Please review EHBEA’s Code of Conduct. Concerns? Speak to Amanda Rotella, Paula Sheppard, or David Coall. [10/10]
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EHBEA 2026 @ehbea2026.bsky.social · 09/04/2025
✅ What to Bring No conference swag = more sustainable & better catering! 🥗 Don’t forget: • Notepad & pen • Bag • Refillable water bottle More info on the website: www.ehbea2025.com [9/10]
ehbea2025.com
Home | EHBEA2025
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EHBEA 2026 @ehbea2026.bsky.social · 09/04/2025
🎉 It's almost time— #EHBEA2025 kicks off this Monday!! We're very excited to welcome you to Newcastle! ✨ Check your inboxes—an important email just went out with everything you need to know. 📩 Here’s a quick thread with the essentials [1/10] 🧵👇
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Pierre de Villemereuil @pdevillemereuil.bsky.social · 08/04/2025
👋 Interested in working on the evolution of genetic architecture 🧬 of complex traits using linked-read sequencing of thousands of common lizards 🦎 from a wild population and common garden experiment? #evolution #genetics Well, I have a PhD offer for you 👇 devillemereuil.legtux.org/erc-funded-p...
devillemereuil.legtux.org
ERC-funded PhD position available – Pierre de Villemereuil
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Eleanor Power @eapower.bsky.social · 01/04/2025
🚨Job alert! Two-year postdoc to join the Rep2SI project at @lsemethodology.bsky.social! We're looking for a modeller to join our team of ethnographers & experimentalists studying the role of reputation and reputational concern in perpetuating social inequality. Apply by 4 May: tinyurl.com/yjccd3vv
Rep2SI: Reputation & the Reproduction of Social Inequality. A Leverhulme-funded project based at the LSE, combining ethnography, economic games, and modelling. We're looking for a modeller to join our core team as a two-year postdoctoral research officer.
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EHBEA 2026 @ehbea2026.bsky.social · 31/03/2025
🚨 Last call! Registration for #EHBEA2025 closes TOMORROW!! 🚨 If you haven’t signed up yet, now’s the time—deadlines wait for no primate! 🦧🧑🏻‍🔬👀 Conference highlights below! 👇🏻 Reg + programme: 👉 www.ehbea2025.com Hope to see you there! #DeadlinePanic #EvolutionaryScience @ehbea.bsky.social
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Sylvie Alayrangues @sylvieamds.bsky.social · 28/03/2025
#scmedias Comment énerver un scientifique ? Demandez-le aux grands médias qui ont fait une promotion dithyrambique d’un livre mauvais truffé d’âneries sur l’évolution ! Histoire racontée vigoureusement avec beaucoup d’humour par @jbaptistandre.bsky.social sfecologie.org/regard/ro24-...
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EvoSapiens @evosapiensfr.bsky.social · 25/03/2025
NOUVELLE VIDÉO !! La science progresse un enterrement à la fois www.youtube.com/watch?v=xOpd... Pourquoi malgré l’indigence et l’injustice des critiques de la psycho évo depuis plus de 30 ans, je pense qu’il y a des raisons d’espérer ! Conclusion de ma mini-série « critiques ».
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Thomas Lenormand @thomaslenormand.bsky.social · 10/03/2025
🚨If you fancy evolutionary genomics, theory, my lab now offers *two* fully-funded #PhD #genomics #popgen #evolution ℹ️One on sex-asex transitions with Christoph Haag bit.ly/4hp1q1A ℹ️One on allele-specific expression with Sylvain Glémin bit.ly/4iuKLuQ Part of #ERC RegEvol In #CEFE lab, Montpellier
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EHBEA @ehbea.bsky.social · 07/03/2025
Please see below for EHBEA's statement in solidarity with Stand Up For Science Day ✊
Statement in support of Stand Up For Science Day
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Jean-Baptiste André @jbaptistandre.bsky.social · 04/03/2025
⏳ The deadline is fast approaching for the ENS-PSL master's program in cognitive science! Apply by March 13!
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