An aerial view shows a research team standing alongside the fossil footprint trackway at the excavation site on the eastern side of Lake Turkana in northern Kenya, 2022. (Louise Leakey via AP) ...

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

WASHINGTON — Muddy footprints left on a Kenyan lakeside suggest two of our early human ancestors were nearby neighbors some 1.5 million years ago. The footprints were left in the mud by two ...

WASHINGTON — Muddy footprints left on a Kenyan lakeside suggest two of our early human ancestors were nearby neighbors some 1.5 million years ago. The footprints were left in the mud by two different ...

WASHINGTON — Muddy footprints left on a Kenyan lakeside suggest two of our early human ancestors were nearby neighbors some 1.5 million years ago. The footprints were left in the mud by two ...

Scientists study fossil footprints for clues about co-existing species of early human ancestors at the excavation site on the eastern side of Lake Turkana in northern Kenya, in 2022. (Neil Thomas ...