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Mapmakers once thought the earth was flat. Astronomers used to believe the sun circled the earth. As late as the 1990s, archaeologists were convinced that the original American settlers crossed a land bridge from Asia into Alaska, found daylight between the glaciers, and gradually followed it south. According to what had been orthodox thinking, that happened about 12,000 years ago. “Suppose it were true,” says Jack Rossen, associate professor and chair of the Department of anthropology. “Suppose you could find a corridor through a mile-high wall of ice and follow it for a thousand miles. What would you eat? Popsicles?”...

Images: Pamela Patrick MAMMOTH HUNTER OR FISH CATCHER? Archaeologists had concluded that the first inhabitants of the New World were fur-clad big-game hunters who swept across the Bering land bridge in pursuit of their prey. But recent evidence suggests that the first settlers may have been just as likely to hunt small game, catch fish or gather plants as they moved through more temperate environments. The leaf-shaped spearpoint I'm holding is surprisingly dainty--for a deadly weapon. I let my mind wander, trying to imagine life some 14,700 years ago in the marshes of southern Chile, where this relic was ...

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...

Migrating peoples were sophisticated in sea harvesting, Jon Erlandson says The Pacific Coast of the Americas was settled starting about 15,000 years ago during the last glacial retreat by seafaring peoples following a "kelp highway" rich in marine resources, a noted professor of anthropology theorized Wednesday. Jon Erlandson, director of the Museum of Natural and Cultural History at the University of Oregon, suggested that especially productive "sweet spots," such as the estuaries of B.C.'s Fraser and Stikine rivers, served as corridors by which people settled the Interior of the province. Erlandson said in an interview these migrating peoples were already...

First Americans thrived on seaweed 19:00 08 May 2008 NewScientist.com news service Jeff Hecht How times have changed. Instead of large amounts of meat and spuds, some of the first Americans enjoyed healthy doses of seaweed. The evidence comes from 27 litres of material collected from the Monte Verde site in southern Chile, widely accepted as the oldest settlement in the Americas. Nine species of seaweed, carbon dated at 13,980 to 14,220 years old, played a major role in a diet that included land plants and animals. Tom Dillehay of Vanderbilt University in Nashville, Tennessee, argues that the seaweeds were...

Ancient People Followed 'Kelp Highway' to America, Researcher Says Bjorn Carey LiveScience Staff Writer Sun Feb 19, 9:00 PM ET ST. LOUIS—Ancient humans from Asia may have entered the Americas following an ocean highway made of dense kelp. The new finding lends strength to the "coastal migration theory," whereby early maritime populations boated from one island to another, hunting the bountiful amounts of sea creatures that live in kelp forests. This research was presented here Sunday at the annual American Association for the Advancement of Science by anthropologist Jon Erlandson of the University of Oregon. Today, a nearly continuous "kelp...