💙New paper!💙

How is knowledge transmitted across generations in a foraging society?

With @danielredhead.bsky.social
we found: In BaYaka foragers, long-term skills pass in smaller, sparser networks, while short-term food info circulates broadly & reciprocally

academic.oup.com/pnasnexus/ar...

Analysis across 95 living and extinct primate species demonstrates that longer thumbs predict bigger brains, highlighting the neural cost of dexterity. 👍🧠@bananajoker.bsky.social
www.nature.com/articles/s42...

📢New paper alert 📢
Signalling during approaches in two sympatric primates species indicates that strong fission-fusion dynamics increase challenges related to coordination and relationship maintenance, promoting signaling production and reciprocity.
www.animalbehaviorandcognition.org/article.php?...

New paper out in eLife! 🎉 Old age variably impacts chimpanzee engagement and efficiency in stone tool use elifesciences.org/articles/105... (including videos of wild elderly chimpanzees using tools! 🪨 🌰)

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...

Les chimpanzés sauvages présentent des liens familiaux sans troubles graves de l’attachement 🐒

✍️ ‪ @elerolland.bsky.social‬
👋 @cnrs-rhoneauvergne.bsky.social‬ @isc-mj.bsky.social‬

Lire l'article dans @nathumbehav.nature.com‬
👉 buff.ly/7OiU0lV

Humans have many unusual traditions. But did you know animals’ strange behaviors can become culture too? Out now in Current Biology (doi.org/10.1016/j.cu...) we show the rise and spread of a surprising tradition: interspecies infant abduction. Interactive timeline (www.ab.mpg.de/671374) 🧵 (1/12)

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...

🚨PAPER ALERT Chimpanzees expand the meanings of their single calls when combining them. They use a variety of mechanisms, analogous to those found in human language, to alter the meanings of single calls in their combinations. Photo by @lirsamuni.bsky.social
www.science.org/doi/10.1126/...

Our new paper is out! 🐒🔊
We compared two wild chimpanzee populations and found that individuals adjust pant hoot acoustics based on context (feeding vs. travelling). Most patterns are shared, but subtle community differences may hint at a small role for vocal usage learning.
doi.org/10.1016/j.an...

Also, they access many tolerant role models, not only their mother. These points may be critical for acquiring large, flexible tool kits'.
With Eléonore Rolland, Cédric Girard-Buttoz @tozbu.bsky.social,Liran Samuni @lirsamuni.bsky.social, Pier Francesco Ferrari, Roman Wittig and Catherine Crockford

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.

A new study highlights the urgent need to integrate chimpanzee cultural preservation with conservation.

It documents the loss of a socially-learned behavior — a mating signal — among a group of chimps following the poaching of all of the male members.

Once lost, behaviors take years to reemerge.

🚨PAPER ALERT! Unlike chimpanzees and marmosets, vocal sequence production in mangabeys does not show a developmental trajectory.
We also present a novel largely applicable Bayesian approach to evaluate individual vocal repertoire size. This can be applied to any signal type
doi.org/10.1038/s420...