Koko the Gorilla
Introduced and narrated by David Attenborough
For centuries the ability to master language was thought to set man apart from the animals. But now apes are being taught a human language; the sign language of the deaf.
Koko is the first gorilla to learn this language. At eight years old she has a vocabulary of over 400 signs. She talks to Californian psychologist PENNY PATTERSON; argues, even lies. But does Koko understand as much as Penny claims? Do her abilities really challenge the traditional view of mans uniqueness?
Produced by BARBET SCHROEDER BBCtv presentation by PELHAM ALDRICH-BLAKE
Series editors PETER JONES and ANTHONY ISAACS. BBC Bristol