[cripplecreek]

It would just about have to be something environmental. To me it seems unlikely that disease would spread very effectively among the people unless there was a lot more interaction than we’ve imagined.

Maybe a disease that jumped from a migratory species.

[muawiyah]

humans habitually swap the girls off to the neighbrs ~ and that ripples on down the line transporting genes from one side of the continent to the other even as the tribe as a whole moves in a completely different direction.

It's quite possible we'll never learn the reality of 'out of Africa' ~

[SunkenCiv]

Thanks cc.