migration

Ethically sourced and informed by archaeology, an ambitious new study reports genome-wide DNA information from 523 ancient humans collected at archaeological sites across the Near East and Central and South Asia. Washington University in St. Louis brought key partners together to generate the world’s largest study of ancient DNA, published this week in the journal Science.

Isotopic analysis of animal teeth from a 2,000-year-old herding settlement near Lake Victoria in southern Kenya show the area was once home to large grassland corridors — routes that could have been used to dodge tsetse flies and bring domesticated livestock to southern Africa.

A new, more robust analysis of recently derived human gene trees by Alan R. Templeton, Ph.D, of Washington University in St Louis, shows three distinct major waves of human migration out of Africa instead of just two, and statistically refutes — strongly — the ‘Out of Africa’ replacement theory. That theory holds that populations of Homo sapiens left Africa 100,000 years ago and wiped out existing populations of humans. Templeton has shown that the African populations interbred with the Eurasian populations — thus making love, not war.

When both husband and wife hold college degrees, it is the husband’s degree — and the husband’s degree alone — that typically determines whether a “power couple” will move to another city for career purposes, suggests a new study by economists at Washington University in St. Louis. The study is bad news for young women seeking gender equity in salary and career opportunities.