Almost every man alive can trace his origins to one man who lived about 135,000 years ago, new research suggests. And that ancient man likely shared the planet with the mother of all women.
The findings, detailed today (Aug. 1) in the journal Science, come from the most complete analysis of the male sex chromosome, or the Y chromosome, to date. The results overturn earlier research, which suggested that men’s most recent common ancestor lived just 50,000 to 60,000 years ago.
Editor’s note: The dating is still largely up for grabs – as are many of their other conclusions. Mitochondrial DNA long ago proved that one woman is the mother of all the living. Now they claim to have chromosomal evidence for the man – Adam.