Discovery of fossilized footprints reveals the moment two ancient human species crossed paths
Two species of ancient human relatives crossed paths 1.5 million years ago. Fossilized footprints in Kenya captured the ...
EurekAlert!4 天
A fossil first: Scientists find 1.5-million-year-old footprints of two different species of ...
More than a million years ago, on a hot savannah teeming with wildlife near the shore of what would someday become Lake ...