The first people to cross into North America from Eurasia did so by travelling through the Bering Strait, or so the theory goes. A new theory has emerged proposing a coastal route into the continent, but evidence has been lacking. A recent analysis of boulders, bedrock, and fossils in Alaska is now providing a clearer picture, pointing to the emergence of a coastal route some 17,000 years ago.
Tagged With human migrations
Our species, Homo sapiens, weren't the first humans to leave Africa - not by a long shot. The remarkable discovery of a 709,000-year-old butchered rhino fossil in the Philippines shows that so-called archaic humans were romping around the islands of southeast Asia a full 400,000 years before our species even existed.
Christopher Columbus reached the New World in 1492, but some experts say Polynesian explorers beat him to it. There's little evidence to support this fringe theory, but scientists have pointed to the presence of sweet potatoes, a plant thought to be native to the Americas, in the South Pacific as potential proof. A genetic analysis of the popular tuberous root and its relatives has now effectively quashed this hypothesis.