Arizona PBS Previews

Koko: The Gorilla Who Talks

Preview | 30s

In 1971, Penny Patterson began teaching sign language to a gorilla, unaware that this relationship would define both their lives. (Also Sat. 8/6 at 6 p.m.; Sun. 8/7 at 3 p.m.; Tue. 8/9 at 2 a.m.)

Aired: 08/03/16

Expired: 08/03/16

Rating: NR

Problems Playing Video? | Closed Captioning

Arizona PBS Previews is a local public television program presented by Arizona PBS.