Some primates pee together. Ena Onishi already knew that—Japanese even has a word for when humans go off to the restroom together: tsureshon. Still, Onishi became curious when she noticed the behavior ...

An experimental study of modern chimpanzees has documented patterns of behavior that seemingly mirror those of our prehistoric human ancestors, casting light on how our predecessors may have utilized ...

Chimpanzees can “catch” yawns from an android robot imitating human facial expressions, according to a new study that raises more questions about the evolutionary origins of the behaviour. Yawning is ...

People often go to the bathroom in groups, and according to new research chimpanzees do the same, possibly to strengthen group social bonds. When you purchase through links on our site, we may earn an ...

Wild chimpanzees have been observed self-medicating their wounds with plants, providing medical aid to other chimps and even removing others from snares left by human hunters, new research suggests.