After 7 years in the making our book on #colobines has finally been published @CUP_LifeScience. We hope this will be a valuable source of information about these fascinating #primates for many years to come. @Teichroeb_Lab. @uwanews @ANHB_UWA @UWAresearch @CEB_UWA @ScienceUWA – at Perth, Western Australia

Proud of my PhD student @HassanAlRazi and this latest publication, just out in @royalsociety Open Science! Great to see his work on how chimps in @NyungwePark's cool, wet montane forests respond to changing weather conditions published. @UWAhumanscience royalsocietypublishing.org/r…

What an amazing symposium on intergroup cooperation at Harvard! Many thanks to Martin Surbeck for bringing together such a fantastic group of researchers to explore commonalities across study systems and advance our understanding of this timely topic

Our preprint on altruism and mate preferences has been getting some attention @UWAhumanscience @UniofOxford telegraph.co.uk/news/2026/09…

New paper! Patchy food and bachelor males can bring primate groups together and promote greater intergroup tolerance. Using a spatial agent-based model, we show how ecology and social pressures can shape complex patterns of animal sociality. brill.com/view/journals/ijfp…

New Animal Behaviour study: male white-headed langurs produce strikingly regular, beat-like calls. During male–male conflicts, their snorts become even more rhythmically precise, suggesting vocal rhythm may signal competitive quality. @UniofOxford sciencedirect.com/science/ar…

Our recent study featured in the New York Times nytimes.com/2026/08/18/scien… @UniofOxford @UWAhumanscience

Something I’ve wanted to do for a long time. Fewer than 200 Tonkin #snubnosedmonkeys remain in N Vietnam. Could they also occur across the border in China’s Malipo County? We’re now visiting nearby villages to find out if anyone has ever seen or heard these elusive monkeys.

Always nice to reconnect with the @IntPrimate crew in Dali.

Article in the #NewScientist about our paper exploring the evolutionary roots of pet-keeping @UniofOxford newscientist.com/article/258…

New paper in Current Zoology! Our 10-year study of black-and-white snub-nosed monkeys shows that male takeovers create sex-specific social pressures on mothers and offspring, likely helping reduce aggression, future male competition or infanticide risk. doi.org/10.1093/cz/zoag046

Can monkeys have "pets"? 🐒 Our latest @ConversationED explores remarkable friendships between primates and other species-and what they might reveal about the evolutionary origins of human–animal companionship. Read more: theconversation.com/monkeys-…

Pleased to share our latest paper! We show that the world's highest-altitude primate, the black-and-white snub-nosed monkey, adjusts its seasonal altitudinal movements through a balance between food availability and solar radiation. mdpi.com/2076-2615/16/15/228… @IntPrimate

New paper! We explore cases of non-human primates carrying, grooming and forming bonds with individuals of other species and what this might reveal about the evolution of pet-keeping. A fun project with fantastic co-authors! @UniofOxford link.springer.com/article/10…

Back in Rwanda, this time accompanying a group as an expert. Always a privilege to share the world of mountain gorillas and chimpanzees through the lens of my own research. 🦍

New paper out! We found that high-altitude snub-nosed monkeys lose more body mass during the mating season than during winter. For these primates, reproduction appears to be even more energetically costly than surviving the cold. 🐒❄️ @IntPrimate

Nice to see media coverage of our new @BiologyLetters paper in Science News⁠: “The persistent threat of altercations may supercharge size evolution in male primates via a kind of chronic cold war.” @UniofOxford @UWAhumanscience @uwanews sciencenews.org/article/prim…

New paper out (@BiologyLetters, OA): in primates, male-biased size differences are better predicted by between-group competition than by mating system. Time to look beyond the group in studies of sexual selection. @UniofOxford doi.org/10.1098/rsbl.2025.06…

Always a pleasure to visit the Department of Anthropology at the University of Zurich and hear about the exciting great ape research underway.

In this paper I argue that xenophilia has deep evolutionary roots (trade, intermarriage, shared defense) and explains how humans uniquely scale and sustain cooperation across groups-crucial for today’s global challenges. @UniofOxford link.springer.com/article/10…

New paper alert! In this @CurrentBiology paper led by @HassanAlRazi, we show that chimpanzees in Rwanda adjust nest construction with weather conditions. @UWAhumanscience @oxford_anthro cell.com/current-biology/ful…