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Saein Lee

@saeinlee.bsky.social
270 followers 402 following 15 posts

Primatologist l Postdoc @UZH : curiosity, prosociality, social norm, social learning l Gibbon 🧑‍💻l DISI 2022 fellow l NGS explorer l FAMELAB

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Reposted by Saein Lee
Duncan Stibbard Hawkes @dstibbardhawkes.bsky.social · 14/07/2026
Children drive all sorts of things, including me, to distraction; but they also shape culture. Important theory piece.
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Ralf Kurvers @ralfkurvers.bsky.social · 15/06/2026
New preprint led by @lucasmolleman.bsky.social investigates social information use across the human lifespan. Testing >40,000 participants aged 6-80 in museums in Berlin and Japan. psyarxiv.com/hec96
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Manuel Bohn @elmanubohn.bsky.social · 17/04/2026
New 🦍 💭 paper in @psychscience.bsky.social We continue to ask simple questions that are hard to answer "Individual Differences in Great Ape Cognition Across Time and Domains: Stability, Structure, and Predictability" Bonus: Rasch models in the supplement 🤓 journals.sagepub.com/doi/10.1177/...
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Chuliang Song @clsong.com · 16/06/2026
Spent the last two years developing a new Intro to Physics course for undergrad biology majors. It features tons of examples from biology (especially Ecology & Evolution!) and requires only middle school-level math. Lecture note here shorturl.at/0PiVp Any comments or feedback are highly welcome!
drive.google.com
physics_for_biologists.pdf
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Danai Papageorgiou @danaipapageorgiou.bsky.social · 17/06/2026
This @noemamag.com article by Ryan Huling, author of Hidden Nations, beautifully covers our Nature Sustainability paper with @merikatariina.bsky.social and @birchlse.bsky.social! If you can’t access it, let me know 😉 doi.org/10.1038/s418...
doi.org
Protecting animal cultures as World Heritage - Nature Sustainability
It is becoming increasingly clear that animal cultures have intrinsic, irreplaceable value, and yet they are not adequately protected by preserving habitat. The time has come for UNESCO to explicitly ...
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Cedric Boeckx @cedricboeckx.bsky.social · 09/06/2026
A very good read: “Recent progress in studies of the last million years of human physical and behavioural evolution” Review by @jamescolearch.bsky.social @elliescerri.bsky.social @matejahajdi.bsky.social @chrisbstringer.bsky.social 🧪💀 rai.onlinelibrary.wiley.com/doi/10.1111/...
rai.onlinelibrary.wiley.com
Recent progress in studies of the last million years of human physical and behavioural evolution
This article presents a synthesis of recent developments in the study of human evolution over the past five years. It begins with an overview of hominin species nomenclature and diversity, followed b...
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Reposted by Saein Lee
Delphine De Moor @delphinedemoor.bsky.social · 07/06/2026
Does it matter whether you use focal sampling or scan sampling to collect animal behaviour data? We used simulations to find out, testing how accurate and precise each method is across a range of behaviours, study systems, and observation protocols.
Illustration comparing which subset of the true occurences of behaviour is recorded using focals vs. scans.
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Lauren Brent @ljnbrent.bsky.social · 03/06/2026
New paper! We use simulations to test received wisdom on the observational sampling method to use and find that Altmann 1974 was right all along (never bet against Jeanne!). Focal follows capture rare, fleeting behaviours, scans captures long, common behaviours. www.sciencedirect.com/science/arti...
sciencedirect.com
Observation methods in animal behaviour: a simulation study of performance
Most behavioural studies rely on systematic behavioural sampling, as observing and recording all behavioural events that occur is rarely feasible. Cho…
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MU-Peter Shimon 🀄 @mu-peter.bsky.social · 03/06/2026
Chimpanzee culture beyond the conspicuous: Evidence for broad-scale observational social learning in wild individuals🧪 www.cell.com/iscience/ful... Suggests wild chimpanzees use peering to learn a wide variety of skills, thereby highlighting unrecognized cultural potential in everyday behaviors.
Peering across the behavioral repertoire (predictions 2a-b)
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Kai Caspar @nomascus.bsky.social · 31/05/2026
New study on the evolution of primate cognition, brain size, sensory and motor functions, prompted by "recent work showing fishes perform as well as primates on various cognitive tests." 🐟🦍🧪 Great to see such broad comparative perspectives driving research. onlinelibrary.wiley.com/doi/10.1002/...
onlinelibrary.wiley.com
Sensorimotor Complexity and Cognition as Predictors of Primate Brain Size
Objectives As animal brain size increases, cognitive performance generally increases. However, other key brain functions, such as the regulation of somatic processes, processing of sensory input, an...
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Rebecca Sear @rebeccasear.bsky.social · 29/04/2026
“we analysed data for 1436 mammal species, confirming that group-living and pair-living species exhibit longer lifespans than solitary species…findings suggest that while group-living may reduce predation risk, pathogen transmission costs in larger groups may constrain longevity benefits”
onlinelibrary.wiley.com
Social Organisation Predicts Lifespan in Mammals
Using Bayesian phylogenetic analyses of 1436 mammal species, we show that pair-living and group-living species have longer maximum lifespans than solitary species after accounting for body mass and p...
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Reposted by Saein Lee
Laura Schlingloff-Nemecz @laurasn.bsky.social · 26/04/2026
New preprint: "Social-information seeking in development: The child as experimental psychologist" (w/ Azzurra Ruggeri). osf.io/preprints/ps... We review literature on how children use their information-seeking and hypothesis-testing skills to learn about other agents, & ask whether...
osf.io
OSF
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Saein Lee @saeinlee.bsky.social · 27/03/2026
We’re conducting a short 5-minute survey to support the development of a practical tool for non-human primates welfare. Researchers, keepers, and vets in zoos, sanctuaries, and rescue centres: your input would be incredibly valuable. forms.gle/SPN7PHVPpzF5... Open until 10 April. Please share!
forms.gle
Global Survey on Non-Human Primate Welfare Monitoring and Research Collaboration
Welcome to a survey for researchers, keepers, and veterinary staff to assess current practices, collaboration, and needs for monitoring non-human primate behavior and welfare. Your reply will be extre...
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Julia Bădescu @iuliabadescu.bsky.social · 21/10/2025
Young chimps play weird with tools and other objects & this can lead to innovation! Moss sponging, doll play, leaf clipping to ask for carrying. If copied and retained, rare kid innovations can contribute to cultural complexity 🧪🔬🐵 My fav article I've ever worked on: www.nature.com/articles/s41...
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Saein Lee @saeinlee.bsky.social · 23/09/2025
The FameLab Swiss final is happening tomorrow, 24th Sept at 6pm! Live stream www.youtube.com/live/jIc30Fq... In person, free entry in the Aula, 1st floor, PROGR in Bern (Waisenhauspl. 30, 3011 Bern). See you tomorrow 🤗 #famelab #sciencecommunication #talkingscience #primates #primatology
youtube.com
FameLab Final 2025
YouTube video by FameLab Switzerland
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Claudio Tennie @ctennie.bsky.social · 27/08/2025
Just in: insect application to wounds happens also in East African chimpanzees: share.google/WwKqxSy4t0e2...
share.google
Insect applications to open wounds by chimpanzees in the wild: first insights from East African chimpanzees - Scientific Reports
Scientific Reports - Insect applications to open wounds by chimpanzees in the wild: first insights from East African chimpanzees
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Stuart K Watson @chimpsahoi.bsky.social · 14/07/2025
Important new work (from Elisa Bandini, @ctennie.bsky.social, @sofiaforss.bsky.social et al.) addressing an elephant in the room - how weird are our weirdest apes, and how is that skewing research efforts? onlinelibrary.wiley.com/doi/10.1111/...
The Biases in Captive Chimpanzee Cognitive Research: First Insights From the Ape Research Index (ARI) Database
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The Ramsey Lab @theramseylab.bsky.social · 02/07/2025
🚨What is behavioral innovativeness? And how can we make sense of claims that individuals or taxa are 'more innovative' than others? In their new EJPS paper, Grant Ramsey & @andrameneganzin.bsky.social defend a novel, multidimensional & multilevel account of innovativeness.👇 #philsci #HPbio #evobio
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Jefferson García-Loor @jeffgarcialoor.bsky.social · 10/07/2025
Hi everyone, happy to share with all of you the paper from the second chapter of my PhD, where we show that more exploratory birds use a broader foraging niche, linking consistent behavior with ecological flexibility. I hope you can enjoy it and share it!!! onlinelibrary.wiley.com/doi/10.1111/...
onlinelibrary.wiley.com
Exploration Behavior Is Consistent and Associated With Foraging Behavior in Island Songbirds
We tested the neophobia threshold hypothesis in six landbird species, including four Darwin's finches. Exploration behavior was consistent over time and contexts, with species exhibiting greater fora....
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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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Angelo Romano @aromano.bsky.social · 09/07/2025
🚨New article in Proc B: "Reciprocity evolves more readily in competitive than cooperative socio-ecologies" Using agent-based evolutionary models, we show that reciprocity emerges more reliably in competitive environments with high exploitation risk. 🔗 royalsocietypublishing.org/doi/10.1098/...
royalsocietypublishing.org
Reciprocity evolves more readily in competitive than cooperative socio-ecologies | Proceedings of the Royal Society B: Biological Sciences
Tracking what others did and matching other’s expected actions is seen across a range of biological systems. As reciprocal matching rewards and reinforces cooperators and punishes and discourages non-...
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Joseph Feldblum @josephfeldblum.bsky.social · 02/07/2025
We have a new paper out in @cp-iscience.bsky.social reporting that more socially integrated female chimpanzees have lower offspring mortality 🧪 #evosky #primates #primatology #anthropology www.sciencedirect.com/science/arti...
sciencedirect.com
Socially integrated female chimpanzees have lower offspring mortality
In humans and other social mammals, more socially connected females often have higher fitness. Yet evidence linking female sociality to offspring surv…
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Andrew King @shoalgroup.bsky.social · 03/06/2025
New paper in @behavecol.bsky.social (link: academic.oup.com/beheco/advan...) led by PhD student @marcofele.bsky.social using hard-won data from our amazing baboon team. Our @swanseauni.bsky.social press release: www.swansea.ac.uk/press-office... We introduce the idea of a "social spandrel".....
swansea.ac.uk
Baboons walk in line for friendship, not survival, new study finds
Researchers at Swansea University have discovered that baboons walk in lines, not for safety or strategy, but simply to stay close to their friends.
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Dr. Alexandra Witt @alexthewitty.bsky.social · 26/05/2025
🚨CogSci preprint alert🚨 When you look at reviews, do you like to focus on positive or negative ones? @stepalminteri.bsky.social, @thecharleywu.bsky.social and I set out to investigate how learning rate biases differ between individual and social learning in our new study. osf.io/bcrw9_v2 🧵 below!
osf.io
OSF
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Saein Lee @saeinlee.bsky.social · 22/05/2025
Had a fantastic #pintofscience night in Baden! 🌟 Sharing stories of curiosity & sociality in humans and non-human primates with laughs, interactions, and great questions. This is why I do science communication to spark curiosity and make science joyful. 🐒 Massive thanks to organizers!
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Saein Lee @saeinlee.bsky.social · 17/05/2025
Great opportunity! If you are interested in it, please check the links below the original post.
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Alex Mesoudi @alexmesoudi.com · 14/05/2025
Updated the reinforcement (+social) learning models in my cultural evolution agent-based modelling in R tutorial. Now uses cmdstan rather than rstan (and more importantly now works again). On github (Model 17): github.com/amesoudi/cul... and bookdown: bookdown.org/amesoudi/ABM...
A graph showing the frequency of correct responses over time in a reinforcement learning modelA graph showing frequency of correct responses over time in a reinforcement learning + conformity modelParameter estimates from a stan model fit to data from a reinforcement learning + conformity simulation
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Pint of Science Switzerland 🇨🇭 @pintofscience.ch · 13/05/2025
Don't miss Pint of Science Switzerland. See you in... Baden! 📍Kulturhaus Royal - Baden, Bahnhofstrasse 39 📆20 May - 6.30PM 🎤Talks in 🇩🇪 and 🇬🇧 🎟️FREE ENTRY Program: pintofscience.ch/event/scienc... @pintsworld.bsky.social #PintCH #Pint25 @uzh-ch.bsky.social @fnhw.bsky.social
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Taï Chimpanzee Project @taichimpproject.bsky.social · 12/05/2025
New paper alert 📢 Young wild chimpanzees from the @taichimpproject.bsky.social show attachment types with their mothers similar to human children. Only they do not display patterns related to disorganized attachment. Read our new paper in Nature Human Behavior www.nature.com/articles/s41...
nature.com
Evidence of organized but not disorganized attachment in wild Western chimpanzee offspring (Pan troglodytes verus) - Nature Human Behaviour
This study of 50 wild Western chimpanzee mother–offspring dyads revealed no evidence of disorganized attachment. Instead, offspring exhibited secure-like and insecure avoidant-like behaviours during t...
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Sheina Lew-Levy @sheinalew.bsky.social · 09/05/2025
I'm THRILLED that our book is out. This book, with other 60 contributors from across the globe (!!!) is a love letter to the science we want to do, and a how-to guide for how to do it. Please read it and share it!
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Robin Morrison @robinmorrison.bsky.social · 07/05/2025
Thrilled to have the 1st project in my @snsf-ch.bsky.social Ambizione fellowship in @pnas.org this week. With Vic Martignac, @samellisq.bsky.social and @savinggorillas.bsky.social we asked what is a good social environment for a gorilla? And the answer was complicated... www.pnas.org/doi/10.1073/...
pnas.org
Group traits moderate the relationship between individual social traits and fitness in gorillas | PNAS
Evidence across a broad range of disciplines has demonstrated how individuals’ social environments can impact their health, lifespan, reproduction,...
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PBrakes @pbrakes.bsky.social · 02/05/2025
phys.org/news/2025-05... Unravelling some of the complexity of animal cultures & conservation with @lucymaplin.bsky.social, @emma-carroll.bsky.social, Alison L Greggor, Andrew Whiten, @ellengarland.bsky.social & contributors to our theme issue doi.org/10.1098/rstb... @royalsocietypublishing.org
phys.org
Animal culture recognized as key factor in new conservation strategies
Exeter scientists are among those who have discovered many animals learn and pass on behaviors through social learning or culture, which could have important implications for conservation.
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Prof. Gillian Brown @gillianrbrown1.bsky.social · 02/05/2025
Enjoyed reading @matteomameli.bsky.social's short book on 'human nature'. While I think that we should park the term 'human nature', Mameli correctly points out that how we think about 'human nature' influences how we think about ourselves. #philbio www.bloomsbury.com/uk/why-human...
bloomsbury.com
Why Human Nature Matters
Does human nature constrain social and political change, or do social and political changes transform human nature? Why Human Nature Matters argues that the ans…
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Friederike [freddy; she/her] Hillemann @fhillemann.bsky.social · 25/04/2025
new preprint: ecoevorxiv.org/repository/view/9055 Code used in research is key to the methods and scientific output and we should ensure it’s not just "available" but easy to verify and build on. We present a practical tool to code review for scientists 🧪 work with @animalecol-nioo.bsky.social
ecoevorxiv.org
Code review in practice: A checklist for computational reproducibility and collaborative research in ecology and evolution
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Zanna Clay @zannaclay.bsky.social · 01/05/2025
Here's an article we did for @theconversation.com about our new study looking at #empathy in chimpanzees and bonobos, and why we need to move beyond stereotypes theconversation.com/our-ape-cous...
theconversation.com
Our ape cousins show us empathy has deep evolutionary roots – new research
It may be time to move on from species stereotypes.
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Saein Lee @saeinlee.bsky.social · 26/04/2025
New paper alert 🚨! Immature gibbons gradually develop their feeding behavior while taking the opportunity to socially learn from their mothers. Learn more by reading our paper! link.springer.com/article/10.1... #gibbon #sociallearning #ape #primates
link.springer.com
Developmental Changes in Feeding Behavior and Maternal Influences in Wild Javan Gibbons (Hylobates moloch) - International Journal of Primatology
Immature primates acquire skills through social learning from more experienced individuals. The needing-to-learn hypothesis posits that prolonged juvenility evolved to support such social learning und...
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Charley Wu @thecharleywu.bsky.social · 25/04/2025
🙌 Hot off the presses @natcomms.nature.com! We created a custom #Minecraft environment to study a long-standing puzzle in cognitive science: How do humans flexibly adapt their individual and social learning strategies in dynamic, realistic situations? Check it out 👉 www.nature.com/articles/s41... 🧵👇
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Zanna Clay @zannaclay.bsky.social · 25/04/2025
New paper alert! - number 2 Social contagion underpins key elements of social interaction, including empathy & social learning. Here, we review research on primate social contagion and offer a unifying framework available open-access! 👇👇 w/ Georgia Sandars www.sciencedirect.com/science/arti...
sciencedirect.com
Social contagion in primates: Moderating factors and significance for individuals and the group
Social contagion, which involves behavioural and emotional state matching, is a crucial process for healthy social functioning. In humans as well as o…
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Ape Shit the zine for primates @monkeywire.bsky.social · 21/04/2025
"Chimps don’t share food all the time, so this behaviour with fermented fruit might be important..."
theguardian.com
Wild chimpanzees filmed by scientists bonding over alcoholic fruit
Footage of apes consuming fermented breadfruit leads researchers to ask if it may shed light on origins of human feasting
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EHBEA 2026 @ehbea2026.bsky.social · 17/04/2025
Rounding out the session, we have a great talk by Saein Lee talking about #conformity & #prosociality! ➡️ Comparing tight vs loose: Tighter cultures show more prosociality, only for behaviours, not self-report! 🌏 #ehbea2025 #SocialNorms @saeinlee.bsky.social
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Primatology.net @primatology.net · 16/04/2025
Bonobos refuse to cooperate when rewards are unfair, showing signs of inequity aversion. Their reactions hint at ancient roots of fairness in primate social life. #Anthropology #Primatology #Bonobos #Fairness #HumanEvolution
primatology.net
What Bonobos Can Teach Us About the Roots of Fairness
A new study explores how one of our closest primate relatives reacts to unequal treatment—and what it might say about the origins of human morality.
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Cedric Boeckx @cedricboeckx.bsky.social · 10/04/2025
Excellent overview by @lukaskuderna.bsky.social highlighting the evolutionary insights that can be gained from complete ape genomes (fantastic resource paper in @nature.com just out) www.nature.com/articles/d41... “Complete sequencing of ape genomes”: www.nature.com/articles/s41... 🧪🧬
nature.com
Complete ape genomes offer a close-up view of human evolution
Scientists have fully sequenced the genomes of six living ape species, enabling long-awaited comparisons of hard-to-assemble genomic regions.
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Zach Garfield @zhgarfield.com · 06/04/2025
A stellar new review on the natural history of sociality from Joan Silk: "Even in a world in which we can order groceries on the internet and work remotely, we depend on our connections to others for our well-being." nyaspubs.onlinelibrary.wiley.com/share/SETDFE... #Evolution #HBES
nyaspubs.onlinelibrary.wiley.com
The natural history of social bonds
You have to enable JavaScript in your browser's settings in order to use the eReader.
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Ammie Kalan @ammiekalan.bsky.social · 04/04/2025
Happy to have a new piece in @science.org with my friend Lydia where we draw attention to the significance of animal material culture for understanding human technical evolution and why we should digitally preserve and protect primate tools and tool use sites. www.science.org/doi/10.1126/...
science.org
Saving the cultural legacy of wild animals
Loss of biodiversity threatens the study of tool use and other cultural behaviors in animals
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Claudio Tennie @ctennie.bsky.social · 03/04/2025
New scientist article on the culture debate (paywalled): www.newscientist.com/article/mg26... Note that the title of the piece is a bit of a mismatch to the differentiating text [I imagine an editor chose the title, not the author].
newscientist.com
The animals revealing why human culture isn't as special as we thought
Even animals with very small brains turn out to have cultural traditions, which poses a puzzler for biologists wondering what makes human culture unique
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Oscar Nodé-Langlois @oscarnl.bsky.social · 29/03/2025
New Paper Alert: Why do chimpanzees have large tool kits? with @taichimpproject.bsky.social www.nature.com/articles/s42... We found that like humans, chimpanzees seek social learning opportunities throughout their first decade of life, particularly for tool use.
nature.com
Social tolerance and role model diversity increase tool use learning opportunities across chimpanzee ontogeny - Communications Biology
Social attention patterns suggest that wild chimpanzees learn from their mothers but also from many other tolerant group members across protracted development. This likely enables chimpanzees to learn...
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Alexandra Rosati @alexrosati.bsky.social · 28/03/2025
Check out our new paper about the #development of #metacognition in rhesus #monkeys, lead by Yiyun Huang! onlinelibrary.wiley.com/doi/full/10....
onlinelibrary.wiley.com
Early Emergence of Metacognition in Rhesus Monkeys
Metacognition, or monitoring and controlling one's knowledge, is a key feature of human cognition. Accumulating evidence shows that foundational forms of metacognition are already present in young in...
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Tristan Yates @tristansyates.bsky.social · 20/03/2025
Why do we not remember being a baby? One idea is that the hippocampus, which is essential for episodic memory in adults, is too immature to form individual memories in infancy. We tested this using awake infant fMRI, new in @science.org #ScienceResearch www.science.org/doi/10.1126/...
science.org
Hippocampal encoding of memories in human infants
Humans lack memories for specific events from the first few years of life. We investigated the mechanistic basis of this infantile amnesia by scanning the brains of awake infants with functional magne...
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Claudio Tennie @ctennie.bsky.social · 19/03/2025
More on open endedness in human culture (see also e.g. here: arxiv.org/abs/2203.130...). But note: open ended culture wouldnt exist without (special) cumulative culture. Btw the first time I heard someone use this term in conjunction with human culture it was by Alex Kacelnik (maybe 2014? Unsure)
arxiv.org
Evolved Open-Endedness in Cultural Evolution: A New Dimension in Open-Ended Evolution Research
The goal of Artificial Life research, as articulated by Chris Langton, is "to contribute to theoretical biology by locating life-as-we-know-it within the larger picture of life-as-it-could-be" (1989, ...
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University of California Press @ucpress.bsky.social · 17/03/2025
Thanks to @salonnewsroom.bsky.social for the great excerpt from Nicole Karlis's YOUR BRAIN ON ALTRUISM: The Power of Connection and Community during Times of Crisis: "Primate and neuroscience studies tell us a lot about how evolution rewards kindness and cooperation": www.salon.com/2025/03/16/a...
salon.com
Altruism is actually a fantastic survival strategy
Primate and neuroscience studies tell us a lot about how evolution rewards kindness and cooperation
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