/tags/orangutan Orangutan en-US Copyright Tue, 14 Mar 2017 08:57:00 GMT /2017-03-14/orangutans-vocal-feats-hint-at-deeper-roots-of-human-speech Rocky wowed scientists when he showed he could control his vocal cords much the way people do. His abilities suggest that early humans might have spoken words 10 million years ago. Tue, 14 Mar 2017 08:57:00 GMT /2017-03-14/orangutans-vocal-feats-hint-at-deeper-roots-of-human-speech Jon Hamilton