quote:
Second, you've misunderstood the study. The 50,000 year date for Y-chromosome Adam is not for the origin of Homo sapiens, but for the most recent common ancestor of all male Homo sapiens alive today. There is also a Mitochondrial Eve, the most recent common ancestor of all female Homo sapiens alive today, thought to have lived around 140,000 years ago.
Anyway, I wonder, if Eve's position is in Africa, then where on Earth is Adam? Studies like these could include geographic locations.