‘She taught me so much’: Grieving trainer of Koko, the gorilla who learned sign language

  1. ‘She taught me so much’: Grieving trainer of Koko, the gorilla who learned sign language  ABC News
  2. Koko the Gorilla, Known for Using Sign Language, Dies at 46  New York Times
  3. Koko, the beloved gorilla that learned to communicate using sign language, has died  Washington Post
  4. The Gorilla Foundation is sad to announce the passing of our beloved Koko | koko.org  Koko.org
  5. Conversations With a Gorilla  National Geographic
  6. Full coverage

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