The Mind of An Ape - Natural Gestures

Natural Gestures

The Premacks note that chimpanzees use some gestures with each other, which the trainers use to communicate with both the language-trained chimpanzees and the control chimpanzees.

  • Requests for food
    • hand cupped, palm upward, for a chimpanzee to place food in.
    • extruding lips in supplication
  • Appeasement
    • One chimpanzee, trembling, hugged Premack at the beginning of his career, as if to appease him at the time of displaying outrage
  • Grooming
  • Eating
  • Greeting

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