Have You Ever Visited Beringia?

I have never quite bought the conjecture that North America was populated by people walking along the "land bridge" from Asia and bringing their Clovis points with them.

Why could they not have come by Sea? In fact, that's the way the aborigines reached Australia 30,000 years ago.  My surmise is that the land bridge theory is written by landsmen. Seamen know that the most efficient way to get from one place to the other is by water.

Now, though, we have new tools for investigating our ancient past. We have, for example, DNA studies that have been able to trace the migration of certain populations across the globe as they came out of Africa and dispersed.

We have been able to trace particular DNA mutations from place to place. We also know, to a fair degree, how often mutations happen.

Another improving tool is that of linguistic analysis. Linguists can also track evolution of languages and language families as they spread, mutate, interact and evolve.

A powerful new marriage of DNA research and linguistics postulates that, instead of a bridge connecting Asia and North America, there was an area of shrub tundra between Alaska and Siberia where ancestors of both Native Americans and Siberian peoples lived in isolation for 15,000 years before migrating both Eastward and Westward as the sea level began to rise.

Here is a summary of the research that tends to support this view.

I still like the hypothesis that Native Americans came by sea.