Today this frigid strait separates North America and Asia, but geologists suspect when the oceans were dramatically lower a land bridge tied ... Humans began crossing over by around 16,500 years ...
EL PASO, Texas – They crossed the U.S.-Mexico border like beggars, tired, hungry and alone. They had no papers or names. That ...
The land bridge ... the Bering Bridge existed, most of northern North America was covered in ice that would have offered nothing to eat. For a long time, it was thought the first people to cross ...
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