2. A Gorilla Who Lied

Koko is learning signs at lightning speed, and Penny’s getting all kinds of attention for her work. But defining language isn’t exactly straightforward. And now, the San Francisco Zoo wants Koko back. 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