Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. A new study finds chimp and ...

A new study of our two closest living relatives finds that, at least in zoos, bonobos may not be more peaceful than ...

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.

Historically considered a more peaceful species than their chimpanzee cousins, bonobos are actually just as aggressive -- but target their ire most often at males, according to a study published ...

New study describes what may be the first case of a unified community of chimps turning on itself ...

The aggressive chimp in us However, one disturbing characteristic stands out. Chimpanzees "go ape" and attack each other in coordinated assaults. Dutch primate expert Frans de Waal's 1982 book ...

Chimpanzees that had once formed a cohesive community in Uganda split into factions and turned violent, according to a new ...

New research led by UCLA and the University of Michigan has shown that chimp communities that kill their neighbors to gain territory also gain reproductive advantages. The Ngogo group of wild ...