Chimpanzees in West Africa have been filmed exhibiting a never-before-seen behavior.
Do you trust all of your friends? If not, then those without your trust really aren’t your buds, new research on chimps suggests.
2015 was a year of both breathtaking highs and devastating lows for the animal kingdom.
We take a fond look back at some of the year's best animal footage shot in the wilderness, on the water, and even in suburban backyards.
As the U.S. government retires its research chimpanzees, the spotlight falls on other animals still in labs that are sentient beings, according to new studies.
The remaining 50 chimps in federal custody will be sent to a sanctuary for retirement.
A severely disabled female chimpanzee got a helping hand in Tanzania.
The baby, whose name Boon means blessing, was orphaned when mum Soona died shortly after he was born at Monarto Zoo in Australia.
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