Anthropology Professor's Work on Bipedalism on Arizona Illustrated

David Raichlen, an anthropologist at the University of Arizona, is conducting research on the evolution of bipedalism in humans. And, through the use of modern technology, he hopes to gain a better understanding of the role that this trait has played in the ongoing development of the human experience.
http://tv.azpm.org/kuat/segments/2008/6/10/kuat-bipedalism