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MrBuddles t1_j5uf6ik wrote

With regards to the concept of prehistoric waves of migration into North America - I'm confused by what that actually means. Does that mean groups/tribes would pulse into North America and somehow displace the people from the previous waves? Did the people from those previous waves largely die out or did they generally mix with the new waves? Is there a generally agreed upon number of major migration waves?

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shimmeringships t1_j5vyefn wrote

A mix of all of the above. Sometimes areas were uninhabited when new people arrived, sometimes they displaced older groups, sometimes they mixed. Sometimes it was a combination where there was some mixing and some displacement. There is a lot of debate about how many waves there were.

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