Foot Bone Puts Prehuman Lucy on a Walking Path

No tip-toeing around it, this foot bone could change the story of human evolution, or at least the story of human foot evolution. Full story

Humans left the trees 4.2 million years ago

Early human ancestors stopped swinging in trees and started walking on the ground sometime between 4.2 and 3.5 million years ago, according to a new study. Full story

4 in 10 Americans still hold creationist views

If you're in a room of 100 people, odds are likely about 40 think God created humans about 10,000 years ago, part of a philosophy called creationism, according to a Gallup poll reported Friday (Dec. 17). That number is slightly lower than in years past and down from a high of 47 percent in both 1993 Full story