It had been thought that North and South America were populated in one large migratory wave from Siberia, but a new study published in Nature shows that there were probably three waves of migrants who became the Native Americans of North and South America, says The New York Times' Nicholas Wade.
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In Science this week: intellectual property landscape of CRISPR genome editing, and more.
A researcher has been convicted of conspiring to steal genetically engineered rice, Reuters reports.
Harvard Medical School's George Church says a woolly mammoth-elephant hybrid is only a few years away, according to the New Scientist.
Intel is ending its sponsorship of the International Science and Engineering Fair, the New York Times reports.