Genome analysis pins down arrival and spread of first Americans
Tuesday, July 21, 2015 - 13:00
in Paleontology & Archaeology
The original Americans came from Siberia in a single wave no more than 23,000 years ago, at the height of the last Ice Age, and apparently hung out in the north - perhaps for thousands of years - before spreading in two distinct populations throughout North and South America, according to a new genomic analysis.