Scientists reveal evidence ancient man got to America from Alaska - fox news
The conventional story says that the earliest settlers came via Siberia, crossing the now-defunct Bering land bridge on foot and trekking through Canada. Scientists now believe the first Americans could have taken a coastal route along Alaska's Pacific border to enter the continent By analysing boulders and bedrock (pictured), researchers say they have 'direct evidence' that part of a coastal migration route became accessible to humans 17,000 years ago Share this article Share 136 shares Scientists now believe the first Americans took a coastal route along Alaska's Pacific border to enter the continent (pictured). Scientists travelled to four islands within Alexander Archipelago that lie about 200 miles (320km) south of Juneau During this period, ancient glaciers receded, exposing islands of southern Alaska's Alexander (pictured). The area was home to food sources such as ancient ringed seal that could support human life at the time that early settlers may have been passing through, the study found Researchers had previously found bones of an ancient ringed seal in a nearby cave that were 17,000 years old. PhD candidate Alia Lesnek (pictured) works at Suemez Island To pinpoint when the ice receded from the region, the team collected bits of rock from the surfaces of boulders and bedrock Pictured is Dr Jason Briner collecting a rock sample on Suemez Island. Researchers ran tests to figure out how long the samples - and thus the islands as a whole - had been free of ice As soon as the ice disappears, however, the bedrock is exposed to cosmic radiation from space, causing it to accumulate certain chemicals on their surface Pictured are researchers at Baker Island. In recent years, evidence has mounted against the conventional thinking that humans populated North America by taking an inland route through Canada To collect data, the research team travelled by helicopter to remote sites within the Alexander Archipelago in southeast Alaska The coastal migration theory provides an alternative narrative, and the new study may mark a step toward solving the mystery of how humans came to the Americas Researchers, including team members from the University at Buffalo and the US Forest Service (pictured), travelled by boat to Warren Island, one of the study sites
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