Seeker
Seeker: Week of 8 25 14: Neanderthals, Humans Overlapped for 5,400 Years
Learn why recent discoveries are causing scientists to rewrite the timeline of modern humans and Neanderthals.
PBS
Pbs Learning Media: Riddle of the Bones
At the online companion Web site of "Evolution," the seven-episode series on PBS, piece together clues to how one of our early ancestors looked as you examine images from four significant fossil finds of Australopithecus afarensis.