Readers ponder hominid hookups and more

Your letters and comments on the October 15, 2016, issue of Science News

Nuts about Neandertals

Recent genetic analyses of populations around the world showed that a wave of ancient humans left Africa about 50,000 to 72,000 years ago. All non-Africans alive today originated from this single wave, Tina Hesman Saey reported in “One Africa exodus populated globe” (SN: 10/15/16, p.