WASHINGTON (AP) — 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 (AP) — 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 ...

Muddy Footprints Suggest 2 Species of Early Humans Were Neighbors in Kenya 1.5 Million Years Ago WASHINGTON (AP) — Muddy footprints left on a Kenyan lakeside suggest two of our early human ...