Koko: A Talking Gorilla

A documentary that follows Dr. Penny Patterson's current scientific study of Koko, a gorilla who communicates through American Sign Language.

Cast

Penny Patterson

Herself

Koko

Herself

Saul Kitchener

Himself - Director Emeritus, San Francisco Zoo

Carl Pribram

Himself - Professor of Neuroscience

Roger Fouts

Himself