From celebrated anthropologist Jennifer Raff comes the untold story -- and fascinating mystery -- of how humans migrated to the Americas.

Jennifer Raff is an Assistant Professor of Anthropology at the University of Kansas with a dual Ph.D. in anthropology and genetics and over fourteen years of experience in researching ancient and modern human DNA from the Americas. In addition to her research, she has been writing on issues of scientific literacy and anthropological research at her own website, Violent Metaphors, and for The Guardian, HuffPost and Evolution Institute blogs for several years. Since 2019 she has been writing a monthly column for Forbes on emerging research in genetics and archaeology.