Every person alive today descended from a woman who lived in modern-day Botswana about 200,000 years ago, a new study finds
Shutterstock Article by Aylin Woodward, via Business Insider A group of researchers say they've pinpointed the ancestral homeland of all humans alive today: modern-day Botswana. In a new study published in the journal Nature, scientists analyzed mitochondrial DNA — genetic information that gets passed down the female line —...