[blam]

"The thing that has puzzled me for years is that if you look at distribution of population in Africa by language group for example or racially, Bushmen for example, is seems that people were coming into Africa rather than departing."

North Africans are what I call 'come-back' Africans, more like the rest of humans, who migrated back to North Africa after they went through many changes.
The Sub-Saharian Africans, I call them 'stay-at-home' Africans, are different than all other people on earth. Everyone else on earth are more closely related to themselves that they are to Sub-Saharian Africans. The 'stay-at-home' Africans missed out on all the changes that make most of us who we are today.

[Little Bill]

Blam; I can't agree with you on that one. If you look at the Nile Vally as an entry point and the spread of of the Bantu language group and the Isolation of the Hottentots and the Bushmen, it would seem to me that that they entered into Africa rather than re entered into.

Allot of the languages in Africa are Egypo-Hametic and they seem to form a crescent from Egypt to Morocco, with a big stab down the Nile Valley into Ethiopia. There need to be some research in this area.

Another question I have is why is there no Neanderthals or few in Africa?