The first Americans, it appears, didn't come across a land bridge from Siberia. More and more research is supporting the idea that so-called Native Americans were not the first inhabitants. My guess is that they did to those who were here first what the Europeans did to them. Just more efficiently.

For those that did come across the land bridge from Siberia ... my guess would be that as they migrated it was from worse to better. If you are in Manitoba in January ... Minnesota can look like paradise. <g>

DA Morgan