The results of some recent psychological experiments have confirmed what pet owners have always maintained: that animals have considerable capacity for thought. Over the last 20 years.
Herb Terrace. Professor of Psychology at Columbia
University, has studied the use of sign language by a chimpanzee, the feats of memory displayed by rats and the organising abilities of birds. In the last of three conversations about language and thought. Professor Colin Blakemore discusses with Professor Terrace how his work has shaped his view of the similarities and differences between human and animal intelligence.
Producer DEBORAHCOHEN