In a paper published today, Nov. 28, in the journal Science, an international team of researchers from the U.S., Kenya and the UK provide the first direct evidence of two different ancient human ...

Newly discovered 1.5-million-year-old footprints reveal how two extinct human species crossed paths within hours of each ...

About 1.5 million years ago, individuals of two different species in the human evolutionary lineage trudged on a muddy ...

A set of footprints found at the site of Koobi Fora in Kenya reveals that our ancestor Homo erectus coexisted with a ...

Washington: About 1.5 million years ago, individuals of two different species in the human evolutionary lineage trudged on a ...

These tracks that once intersected have turned into fossils, which researchers have now found at a site known as Koobi Fora. This is the first proof that Paranthropus boisei and Homo erectus lived ...

They were searching for human fossils in sediments dating back 1.5 million years, but instead they found the footprint of a ...

These tracks turned into fossils that scientists have now discovered at a location called Koobi Fora, providing the first evidence that these two species — Paranthropus boisei and Homo erectus ...

A discovery in northern Kenya hints that two extinct species that were our ancient relatives shared the same habitat and ...

Scientists previously knew from fossil remains that these two extinct branches of the human evolutionary tree — called Homo erectus and Paranthropus boisei — lived about the same time in the ...

Muddy footprints left on a Kenyan lakeside suggest two of our early human ancestors were neighbors some 1.5 million years ago ...

An international team of researchers said Thursday that they had found two sets of hominin footprints that were made about ...