A new analysis of lice genetic diversity suggests that lice came to the Americas twice—once during the first wave of human migration across the Bering Strait, and again during European colonization. Marina Ascunce, currently at the USDA-ARS, and colleagues, report these findings in a study published in the journal PLOS ONE.
Click here for original story, Genetic analysis shows head lice evolution mirrors human migration and colonization in the Americas
Source: Phys.org