Nature

A Conversation with Koko

Season 17 Episode 10 | 53m 43s

Koko is a captive-born, western lowland gorilla, who has learned how to talk by learning over 1000 words in American Sign Language. Koko and Dr. Penny Patterson, Koko’s teacher, caretaker and interpreter, are science celebrities, who together have proven that intelligence, self-awareness, memory and emotions are not the sole realm of “human” animals.

Aired: 08/07/98

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