1. A Talking Gorilla

It’s the early 1970s, and grad student Penny Patterson sets out to investigate a big question: is language a uniquely human skill? So she begins an ambitious experiment -- with the help of a young gorilla named Koko. Pretty soon, Penny says Koko is learning sign language. But some doubt Penny’s version of events. To learn more about listener data and our privacy practices visit: https://www.audacyinc.com/privacy-policy Learn more about your ad choices. Visit https://podcastchoices.com/adchoices