Here's something that'll make your next giggle session feel a bit weird: scientists genuinely can't figure out if your laughter evolved from joyful chimp panting or from the threatening bared-teeth ...

Chimpanzees have a reputation for being aggressive, while bonobos are often seen as their peaceful counterparts. This contrast has frequently been used to explain different sides of human nature.

Bonobos (Pan Paniscus) on a tree branch. The Swearing and Aggressive Bonobo ( Pan paniscus). Democratic Republic of Congo. Africa© Sergey Uryadnikov/Shutterstock.com For decades, scientists believed ...

Nothing brings a group of primates together, humans included, quite like a threat from outside. Bonobos are unique among primates because they do not kill other bonobos, even during conflicts with ...

Although about half of primate species play as adults with other adults, a team of international researchers has just unlocked a key factor in the reason why some don’t. The answer lies in the type of ...