[Chancellor]

Quote by: gallo It isn't speculation. It is based on evidence... Words like "probably" are used because an exact date is uncertain.

Which makes it speculation.

Certainly, the dates given are within a few thousand years either way.

Again, it's still speculation - guesswork.

Because she procreated with one or more males in her population. I should have said our most recent matrilineal common ancestor lived about 140,000 years ago, while our most recent patrilineal common ancestor lived about 60,000 years ago. The oldest, modern human fossils that have been found were from Africa, 2 skulls from Omo from about 195,000 years ago, and 3 from Herto from about 160,000 years ago. So our most recent common ancestors lived somewhere in Africa, since they are ancestral to all modern humans. But our most recent patrilineal (X-chromosome) ancestor lived shortly before our species exited Africa.

Ah, yes, so the guess work continues. Notice words like "about" and "shortly."

And you people expect the rest of us to take science seriously?