Add Yahoo as a preferred source to see more of our stories on Google. "Hippie" bonobos are just as aggressive as "warrior" chimpanzees, according to a new study. However, the findings also reveal some ...

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.

A new study of our two closest living relatives finds that, at least in zoos, bonobos may not be more peaceful than chimpanzees. Bonobos (Pan paniscus) are only found south of the Congo River in the ...

The Ngogo chimpanzees of Uganda's Kibale National Park have long been known for violent clashes with neighboring groups, often resulting in deaths—a phenomenon sometimes described as "chimpanzee ...

WASHINGTON, March 13 (Reuters) - Bonobos for years have had the reputation of being the cool hippies of the simian world, with a "make love, not war" ethos, in contrast to their belligerent cousins, ...

Chimpanzees share more than 98% of human DNA, and decades of field research across Africa show their societies can be intensely violent. Long-term studies at sites like Gombe and Kibale document ...