Still, the landscape has been selectively ravaged, and the chimps are nowhere to be found. Just six years ago, the apes that Morgan and Sanz found in Zone D were mostly naive. Now when they catch ...

Though very close in genetic relationship and virtually next-door neighbors, chimpanzees and a less-well-known species called bonobos in Zaire are socially poles apart. Only identified as a ...

In 2011, the world got to witness a heartwarming moment. Three chimpanzees—middle-aged but newly liberated—felt the grass under their feet for the very first time. After enduring 30 years in a ...