Jean-Baptiste André
@jbaptistandre.bsky.social
Evolutionary biologist studying human behavior and societies through adaptationist reasoning. CNRS researcher @ Ecole Normale Supérieure-PSL & Institut Jean Nicod.
Pinned
Ever wanted to read about an old problem almost nobody cares about anymore?
Well, I wrote about it.
🧵
Well, I wrote about it.
🧵
Reposted by Jean-Baptiste André
[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
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
PhD track in cognitive science | PSL
Faire un don
psl.eu
October 23, 2025 at 12:46 PM
[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
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
Reposted by Jean-Baptiste André
Help us strengthen trust in climate scientists in the US! Join our megastudy 👇
October 15, 2025 at 10:03 AM
Help us strengthen trust in climate scientists in the US! Join our megastudy 👇
Reposted by Jean-Baptiste André
🚨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
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
Overview | EHBEA2026
www.ehbea2026.com
October 10, 2025 at 10:27 AM
🚨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
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
Reposted by Jean-Baptiste André
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...
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...
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...
docs.google.com
October 7, 2025 at 4:22 PM
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...
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...
Ever wanted to read about an old problem almost nobody cares about anymore?
Well, I wrote about it.
🧵
Well, I wrote about it.
🧵
September 24, 2025 at 8:54 AM
Ever wanted to read about an old problem almost nobody cares about anymore?
Well, I wrote about it.
🧵
Well, I wrote about it.
🧵
Reposted by Jean-Baptiste André
📢 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...
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...
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...
www.iast.fr
September 22, 2025 at 7:44 AM
📢 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...
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...
Reposted by Jean-Baptiste André
Our #study finds that #male #dominance isn't the norm among #primates, and starts to unravel what shapes flexibility in intersexual power
paper (OA) https://www.pnas.org/doi/10.1073/pnas.2500405122
press release https://www.mpg.de/24986976/0630-evan-beyond-the-alpha-male-150495-x?c=2249
paper (OA) https://www.pnas.org/doi/10.1073/pnas.2500405122
press release https://www.mpg.de/24986976/0630-evan-beyond-the-alpha-male-150495-x?c=2249
July 8, 2025 at 1:56 PM
Our #study finds that #male #dominance isn't the norm among #primates, and starts to unravel what shapes flexibility in intersexual power
paper (OA) https://www.pnas.org/doi/10.1073/pnas.2500405122
press release https://www.mpg.de/24986976/0630-evan-beyond-the-alpha-male-150495-x?c=2249
paper (OA) https://www.pnas.org/doi/10.1073/pnas.2500405122
press release https://www.mpg.de/24986976/0630-evan-beyond-the-alpha-male-150495-x?c=2249
Reposted by Jean-Baptiste André
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...
www.sciencedirect.com/journal/evol...
a man in a red jacket is eating a sandwich
ALT: a man in a red jacket is eating a sandwich
media.tenor.com
July 7, 2025 at 8:38 AM
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...
www.sciencedirect.com/journal/evol...
Reposted by Jean-Baptiste André
"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"
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...
www.hbes.com
July 1, 2025 at 1:27 PM
"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"
Reposted by Jean-Baptiste André
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-...
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...
www.hbes.com
June 30, 2025 at 1:36 PM
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-...
Reposted by Jean-Baptiste André
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.
"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.
June 24, 2025 at 1:38 PM
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.
"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.
Reposted by Jean-Baptiste André
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
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...
June 2, 2025 at 11:56 AM
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
Reposted by Jean-Baptiste André
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...
June 2, 2025 at 11:43 AM
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...
Reposted by Jean-Baptiste André
the functional form of moral judgment is (sometimes) the nash bargaining solution
new preprint👇
new preprint👇
May 20, 2025 at 3:08 PM
the functional form of moral judgment is (sometimes) the nash bargaining solution
new preprint👇
new preprint👇
Reposted by Jean-Baptiste André
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...
Alona Fyshe @alonaf.bsky.social on the BabyLM Challenge, a competition that trains language models (LMs) on smaller datasets, more akin to how a baby learns, in search of solutions to some of the major challenges of today’s LLMs.
#NeuroAI #neuroskyence
www.thetransmitter.org/neuroai/the-...
#NeuroAI #neuroskyence
www.thetransmitter.org/neuroai/the-...
Can babies inspire more efficient learning algorithms?
A competition that trains language models on smaller datasets, more akin to how a baby learns, seeks solutions to some of LLM’s major challenges.
www.thetransmitter.org
May 19, 2025 at 3:24 PM
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...
Reposted by Jean-Baptiste André
🧵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-...
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-...
May 6, 2025 at 9:45 AM
🧵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-...
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-...
Reposted by Jean-Baptiste André
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
PCI Psychology
Peer Community in Psychology
psych.peercommunityin.org
April 23, 2025 at 7:50 PM
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
Reposted by Jean-Baptiste André
Two more weeks to apply! Spread the word and reach out with any questions.
🚨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
Apply by 4 May: tinyurl.com/yjccd3vv
April 21, 2025 at 8:40 AM
Two more weeks to apply! Spread the word and reach out with any questions.
Reposted by Jean-Baptiste André
Many thanks to all organisers of #EHBEA2025 for putting on such an inclusive and welcoming conference! @ehbea.bsky.social @ehbea2025.bsky.social
April 18, 2025 at 4:20 PM
Many thanks to all organisers of #EHBEA2025 for putting on such an inclusive and welcoming conference! @ehbea.bsky.social @ehbea2025.bsky.social
Reposted by Jean-Baptiste André
Looking forward to EHBEA 2026 in Leiden, Netherlands. Dates for diary: 15-17 Apr 2026 #ehbea2025
April 17, 2025 at 8:59 AM
Reposted by Jean-Baptiste André
🧠✨ 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
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
April 15, 2025 at 8:27 AM
🧠✨ 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
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
Reposted by Jean-Baptiste André
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...
www.dropbox.com
February 10, 2025 at 6:51 PM
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...
Reposted by Jean-Baptiste André
🚨 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
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
Home | EHBEA2025
www.ehbea2025.com
April 11, 2025 at 1:15 PM
🚨 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
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
Reposted by Jean-Baptiste André
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
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
April 14, 2025 at 10:10 AM
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
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
Reposted by Jean-Baptiste André
✨️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
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
April 12, 2025 at 1:05 PM
✨️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
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