Woolly mammoths native to what's now the U.S., says study

Darkfrog submitted, created time 4 months 2 days (sciencenow.sciencemag.org)

Recent DNA tests of preserved DNA have allowed us to sort prehistoric mammoths into three groups: One subspecies lived in Eurasia, one in North America, and another ranged through both. For a long time, it was thought that mammoths originated in Eurasia because the fossils that have been found there are older. While this seems to be true, the studies also show that the subspecies that arose in North America crossed the Bering Strait and supplanted the other two a few hundred thousand years ago.

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