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CORVALLIS, Ore. – Stone tools and other artifacts unearthed from an archaeological dig at the Cooper’s Ferry site in western Idaho suggest that people lived in the area 16,000 years ago, more than a thousand years earlier than scientists previously thought. The artifacts would be considered among the earliest evidence of people in North America. The findings, published today in Science, add weight to the hypothesis that initial human migration to the Americas followed a Pacific coastal route rather than through the opening of an inland ice-free corridor, said Loren Davis, a professor of anthropology at Oregon State University and...

IN CEDROS ISLAND IN MEXICO—Matthew Des Lauriers got the first inkling that he had stumbled on something special when he pulled over on a dirt road here, seeking a place for his team to use the bathroom. While waiting for everyone to return to the car, Des Lauriers, then a graduate student at the University of California, Riverside, meandered across the landscape, scanning for stone tools and shell fragments left by the people who had lived on the island in the past 1500 years. As he explored, his feet crunched over shells of large Pismo clams—bivalves that he hadn't seen...

Will Dunham October 23, 2014 They lived on a remote dot of land in the middle of the Pacific, 2,300 miles (3,700 km) west of South America and 1,100 miles (1,770 km) from the closest island, erecting huge stone figures that still stare enigmatically from the hillsides. But the ancient Polynesian people who populated Easter Island, or Rapa Nui, were not as isolated as long believed. Scientists who conducted a genetic study, published on Thursday in the journal Current Biology, found these ancient people had significant contact with Native American populations hundreds of years before the first Westerners reached the...

University of Texas at Austin researcher says the first Americans arrived earlier than previo Schoolchildren can recite the story of the first Americans. About 12,000 years ago, prehistoric humans walked out of Siberia, trekked across the Bering land bridge and down an ice-free corridor into inner North America, where they hunted Ice Age elephants and peopled the new world. But mounting evidence is slowly turning that story to fiction, said Michael Collins, an archaeologist with the Texas Archaeological Research Laboratory at the University of Texas at Austin. For more than 20 years, Collins and other scientists have been digging up...