The Whistling Orangutan
Bonnie, a 30-year-old female orangutan living at the Smithsonian National Zoological Par... ...started whistling!Scientists have long known that orangutans copy physical movements of humans, but Bonnie's w... ...istling indicates that the learning capacities of orangutans and...
https://www.neatorama.com/2008/12/12/the-whistling-orangutan/
