Belgesel |
Directed By: Barbet Schroeder
Star Cast: Penny Patterson , Koko , Saul Kitchener , Carl Pribram ,
Belgesel
gorilla zoo sign languages communication
Penny Patterson
Herself
Koko
Saul Kitchener
Himself - Director Emeritus, San Francisco Zoo
Carl Pribram
Himself - Professor of Neuroscience
Roger Fouts
Himself