The world’s largest-known group of chimpanzees split into two factions that are now engaged in deadly combat ...

The largest group of wild chimpanzees known to scientists has permanently split in two. In a study published in Science, ...

By Will Dunham April 9 (Reuters) - For two decades, researchers observed members of the Ngogo chimpanzee group of Kibale National Park in Uganda spend their days eating fruits and leaves, resting, ...

Chimpanzees are among the most intelligent primates, but that intelligence is paired with extreme physical strength and aggression. Documented attacks show that they can inflict severe and sometimes ...

Larger, more tolerant chimpanzee groups manage shared resources more effectively and exhibit less aggressive competition than smaller, more competitive groups. Tolerance functions as a group-level ...

The riskiest behavior in humans peaks in adolescence. Researchers from the University of Michigan and James Madison University expected to find risky behavior to peak in adolescence in a study of ...

In A Nutshell A captive chimpanzee in Japan named Ayumu repeatedly pried floorboards off a walkway and used them as ...

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