New Fossils Add Link to the Chain of the Evolution of Humans

In following the fossil tracks of human evolution, scientists have for years searched for links between Australopithecus, the kin of the famous "Lucy" skeleton, and even earlier possible ancestors. Now, they think they have found some connections in Ethiopia.

An international team of paleontologists is reporting the discovery of transitional species superimposed in sediments in the neighborhood of a single site. The findings appear today in the journal Nature.