Richard Leakey Reflects On Human Past--And Future
Paleoanthropologist Richard Leakey talks about what several generations of fossil finds reveal about human origins, and how modern Homo sapiens are threatening the future of life around the globe. Evolutionary biologist Quentin Atkinson joins to discuss the origins of language, which, like hominids, he's traced to Africa.
Source: http://www.npr.org/2011/04/15/135442954/richard-leakey-reflects-on-human-past-and-future?ft=1&f=1007