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 ...

For years, anthropologists have watched wild chimpanzees "go ape" and attack each other in coordinated assaults. But until now, scientists were unsure whether interactions with humans had brought on ...

Photo: Bill Wallauer For more than 65 years, research from Gombe has offered an extraordinary window into the lives of wild ...