Why Koko the Gorilla, Who Mastered Sign Language, Mattered National(01)

Why Koko the Gorilla, Who Mastered Sign Language, Mattered National(01)


Image gallery: Koko Yamada Nude

Conversations With a Gorilla—National Geographic's 1978 Cover Story of Koko Why Koko the Gorilla, Who Mastered Sign Language, Mattered National Koko Linguistic Anthropology