Scientists discovered 1.5-million-year-old footprints in Kenya, revealing two hominin species coexisted and interacted.
The footprints were left in the mud by two different species “within a matter of hours, or at most days,” a co-author of the ...
More than 1.5 million years ago, two different species of ancient human crossed paths on a lakeshore, perhaps locking eyes ...
Study provides first evidence of different bipedalism styles on same footprint surface, attributed to both species.
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