Science Friday Initiative
Science Friday: Study Suggests Earlier Meat Eating in Hominids
Study authors say fossil bones have marks from the tools used for butchering.
PBS
Pbs Teachers:laetoli Footprints
Compare ancient biped prints with those of modern humans and chimpanzees to infer the existence of bipedal hominids on earth more than 3.5 million years ago. Discover what sequence of natural events occurred to preserve the Laetoli...