Humanlike legs took Homo out of Africa
Walking Small: Humanlike legs took Homo out of Africa
Newly discovered fossils, 1.77 million years old, show that the earliest known
human ancestors to leave Africa for Asia possessed humanlike legs, feet, and
spines, but strikingly small brains and primitive arms.
http://www.sciencenews.org/articles/20070922/fob1.asp
