As Homo erectus and Paranthropus boisei – a direct ancestor and an ancestral relative of modern humans, respectively – lived ...

Footprints found in Koobi Fora, Kenya, reveal Homo erectus and Paranthropus boisei coexisted 1.5 million years ago, with ...

Researchers say the footprints were left in the mud by two different species, perhaps within a matter of hours or days.

The discovery offers new insight into human evolution, particularly between the two early human species, known as hominins — a term for a subdivision of hominids. Hominins are all organisms within the ...

Study of ancient footprints first ever to show that early ancestors coexisted in shared space PITTSBURGH, Pa. — In the arid ...