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Primitive humans may have ventured out of Africa earlier than previously thought, suggest new evidence.
The stone tools found during a search in China would be 270,000 years older than the first signs of a human presence outside of Africa.
Chinese and British researchers believe the tools were made by another homo (19659002) Until now, the earliest evidence of man-like creatures outside the continent came from other countries. objects and skulls dating back 1.8 million years found in Dmanisi Georgia. 19659002] The newly discovered artifacts were found on a plateau north of the Qinling Mountains and include several chipped rocks, fragments and hammer stones.
The research, published in the journal Nature, also suggests that ancient humans have returned to the same site several times, possibly for hunting.
Bones of pigs and deer were found on the site but scientists could not definitively prove that the tools were used for hunting.
Zhaoyu Zhu, a professor at the Guangzhou Institute of Geochemistry, said the team was "very excited" by the results.
"One of my colleagues suddenly noticed a stone embedded in a steep outcrop.After a short time, other artifacts were found – one after the other."
However, other experts said the results should be taken with caution.
An anthropologist at William Paterson University in New Jersey, Geoffrey Pope, is "skeptical" and the discovery "will change very little."
He explained that sometimes nature can shape stones in such a way that they seem to have been carved by hand.
But Sonia Harmand, an archaeologist at Stony Brook University in New York City, said, "This could be, frankly, one of the most important (archaeological) sites in the world."
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