The First Migrations From Siberia

The map above illustrates how the first Native Americans came to this
continent over twelve thousands years ago.  The shaded area separating
Siberia from North America was a strip o land during the Ice Age, now
called Beringia by scientists.  There are tw o theories regarding this
migration:  Some believe people from Asia followed game into America
across this land bridge.  Other argue that the freezing, windswept tundra
environment of Beringia would have been too harsh a crossing, and that
most likely the migrants would have stayed close to the warmer coastline
where food was more easily available, perhaps making the journey in boats.
Eskimos living in this region today provide some clues: They are known to
be skilled fishermen, and ancient drawings show them hunting wales in
two-men kayaks. Possibly their ancestors traveled into the New World along
the southern coast of Beringia by water in kayaks.