Ummm...in case you haven't noticed, Africa is not populated by one homogeneous race of "black people". The sub-Saharan Africans are extremely genetically diverse; try comparing a Khoi, a Pygmy and a West African Bantu sometime, and telling me they're all the same race. It's like looking at a Chinese person, a Swede and an Eskimo and saying they belong to the same Americo-Eurasian race.