20. Bölüm: 20. Bölüm

Bölüm Konusu

This documentary by Horizon looks back into the 1980's where the work of pioneer researchers trying to determine if chimpanzees could understand language was attacked as charlatanism. Now the public opinion has moved back in favour of the idea that apes can indeed talk to us. The program looks at the latest developments in the chimpanzee language laboratories in America.