BBC
Bbc: Mother of Man Lucy
Article discusses the importance of Lucy to the theory of evolution and her bipedalism form of locomotion. Archived.
PBS
Pbs Learning Media: The Transforming Leap, From Four Legs to Two
John Noble Wilford, a "New York Times" science writer, outlines various hypotheses on the origin of bipedalism.
Other
Institute of Human Origins: Classifying Life
In this exercise you will build two skeletons, one of an ape and one of a modern human being. The bones have been completely mixed up so its up to you to find the right fit. In this exercise you will learn about the unique...