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According to a Phys.org report, large numbers of megafauna bones discovered at archaeological sites in three South American countries suggest that humans regularly consumed giant sloths and giant armadillos between 13,000 and 11,600 years ago. Luciano Prates of the National University of La Plata and his colleagues examined animal bones recovered from 20 archaeological sites across Argentina, Chile, and Uruguay, and determined that more than 80 percent of them at 15 of the locations belonged to megafauna. It had been previously thought that Ice Age hunter-gatherers in the region hunted the large animals occasionally, but survived day to day by...

Recent scientific findings date their arrival earlier than ever thought, sparking hot debate among archaeologists For much of its length, the slow-moving Aucilla River in northern Florida flows underground, tunneling through bedrock limestone. But here and there it surfaces, and preserved in those inky ponds lie secrets of the first Americans.For years adventurous divers had hunted fossils and artifacts in the sinkholes of the Aucilla about an hour east of Tallahassee. They found stone arrowheads and the bones of extinct mammals such as mammoth, mastodon and the American ice age horse.Then, in the 1980s, archaeologists from the Florida Museum of...