(p. D1) The oldest stone tools outside Africa have been discovered in western China, scientists reported on Wednesday [July 11, 2018]. Made by ancient members of the human lineage, called hominins, the chipped rocks are estimated to be as much as 2.1 million years old.
The find may add a new chapter to the story of hominin evolution, suggesting that some of these species left Africa far earlier than once believed and managed to travel over 8,000 miles east of their evolutionary birthplace.
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(p. D3) The trigger for that migration? Maybe it was figuring out how to make sharp stone tools.
“Suddenly you had a primate that could obtain meat from a carcass, and it opened up a new world for them,” Dr. Dennell said. “That simple technology was enough to get them out of Africa and right across Asia.”
For the full story, see:
Zimmer, Carl. “Ancient Tools Provide New Insight.” The New York Times (Tuesday, July 17, 2018): D1 & D3.
(Note: ellipsis, and bracketed date, added.)
(Note: the online version of the story has the date July 11, 2018, and has the title “Archaeologists in China Discover the Oldest Stone Tools Outside Africa.”)