Chimpanzee Cooperation (1 of 2) (IMAGE)

Emory Health Sciences

Chimpanzee Cooperation (1 of 2)

Caption

The study apparatus required that chimpanzees remove a barrier in order for another chimpanzee to simultaneously pull in a tray baited with food. The apparatus was mounted to the outdoor enclosure, allowing the chimpanzees to come and go as they wanted.

Credit

Yerkes National Primate Research Center

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