Fossilized footprints preserved in rock do the same – they record instants in the lives of many different extinct organisms ... about the behavior of hominin species that walked on two feet ...

Research on ancient footprints in Kenya demonstrates coexistence of Homo erectus and Paranthropus boisei 1.5 million years ...

Human footprints ... million years ago. Discoveries in eastern Africa of tracks made by hominins—our ancient relatives—are telling paleontologists like ourselves about the behavior of hominin ...