Muddy footprints suggest 2 species of early humans were neighbors in Kenya 1.5 million years ago
Muddy footprints left on a Kenyan lakeside suggest two of our early human ancestors were neighbors some 1.5 million years ago ...
Discovery of fossilized footprints reveals the moment two ancient human species crossed paths
A stunning discovery of fossilized footprints pressed into soft mud preserved the unexpected and extraordinary moment, ...