How did the first humans migrate to populate North America? It’s one of the great scientific puzzles of our day, especially because forbidding glaciers covered most of Canada, Alaska and Pacific Northwest during the Last Glacial Maximum (LGM). These glaciers limited human movements between northern ice-free areas, like the Beringia Land Bridge, and southern ice-free areas, like the continental United States.
Click here for original story, Study of marten genomes suggests coastal safe havens aided peopling of Americas
Source: Phys.org