Stone tools tell a tale of ancients

October 26, 2014 7:05 AM

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Stone tools tell a tale of ancients

Artifacts were found high in the Peruvian Andes.

Now, their stone tools and other artifacts have revealed their presence at about 14,700 feet above sea level, about as high as the Matterhorn and much higher than Machu Picchu. They lived there nearly 1,000 years earlier than any other known human habitation anywhere above even 13,000 feet, research...

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