The oldest male chimpanzee living in an accredited North American zoo died Saturday at the San Francisco Zoo & Gardens. He was 63.The chimpanzee, ...
A video of a chimpanzee at the Comoe Research station in the Ivory Coast using an especially long brush-tipped stick tool to dip for water from tree ...
Chimpanzees use their hands to say "follow me," "stop that" or "take this," according to new research
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