Renowned evolutionary biologist Richard Leakey predicts a dark future

In his life, Richard Leakey has been both a politician and ecologist; the son of famous anthropologists Louis and Mary Leakey, he's also an evolutionary biologist who invented the term "the sixth extinction" to describe the coming environmental catastrophe. And now he's ruffling feathers by predicting a dark future‚Ķ » 5/28/12 11:49am 5/28/12 11:49am

Listen to a live conversation between two legends of human evolutionary…

Tune in at 6:30 ET today to catch a conversation between two major figures in the field of human evolution and paleontology, Donald Johanson and Richard Leakey. They're having a conversation about the importance of new discoveries in human evolution at New York's American Museum of Natural History. » 5/05/11 3:00pm 5/05/11 3:00pm