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Koko: The Gorilla Who Talks to PeopleIn pictures...

The unique story of scientist Penny Patterson and Koko, the gorilla she taught to sign.

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Penny signing to Koko

Photograph taken circa 1976 courtesy of Koko.org

  • Koko on Penny Patterson’s shoulder at San Francisco Zoo
  • Koko holds a flower to Penny’s nose.
  • Penny Patterson & Koko at the Djerassi ranch, California
  • Koko hugs Penny at the Gorilla Foundation, California
  • Penny holds Koko in her arms
  • Koko & Penny Patterson have a picnic
  • Koko & Penny Patterson driving in the car
  • Koko taking picture of herself in the mirror
  • Penny passes Koko a kitten as Koko signs “good”
  • Koko holding a kitten
  • Penny signing to Koko
  • Ron Cohn, Koko and Penny Patterson

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