Patterson

A reporter is interviewing Dr. Patterson about Koko, a talking gorilla.

Dr. Patterson communicated with a gorilla using sign language.

Dr. Patterson also uses spoken language with Koko.

Dr. Patterson: She made the sign for cat.

Dr. Patterson: Oh, no! She was very gentle with him.

Dr. Patterson: Not at all! Koko has taught us that gorillas are intelligent enough to learn sign language.

Dr. Patterson: Yes, it was horrible.

Dr. Patterson: Sure. Do you know about Koko's love for cats?

In 1972, Dr. Francine Patterson started to teach sign language to Koko.

Dr. Patterson, a psychologist, has tested Koko's IQ.