Ancient Human Ancestors: Walking in the Woods
Clip: Episode 3 | 3m 47s
When did we start walking exclusively on two legs, and how did this transition take place? Neil Shubin pays a visit to Tim White and Owen Lovejoy, two anthropologists working together to understand "Ardi," a 4.4-million-year-old fossil that sheds light on our transition to bipedalism.
Problems Playing Video? | Closed Captioning