The excavation of bone tools at Olduvai Gorge in Tanzania expands the range of ancient hominids’ cultural innovations.
The well-preserved bone tools, measuring up to around 16 inches (40 centimeters), were likely made by breaking off the thick ends of leg bones and ... species of human ancestors lived in the ...
The well-preserved bone tools, measuring up to around 16 inches (40 centimeters), were likely made by breaking off the thick ends of leg bones and using a stone ... three different species of human ...
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