Black People Are the Origin of All People

The low level of genetic variation across populations surprised many in the scientific community. Scientists believe the reason for this low level of variation is because the entire world population of 6.5 billion is descended from a small group of people, probably numbering no more than 2,000, who lived in Africa 70,000 years ago.[6][7] From this small group, an even smaller group left Africa by crossing the Red Sea and proceeded to populate the rest of the world. The differences in physical appearance between the various peoples of the world is as a result of adaptations to the different environments that the early pioneers who left Africa made in order to conquer the new lands to which they traveled.

The African population retains the great degree of physical variation. Even though all Africans share a skin color that is dark relative to other peoples of the world, they actually differ significantly in physical appearance. Examples include the Dinka, some of the tallest people in the world and the Mbuti, the shortest people in the world. Others such as the Khoisan people have an epicanthal fold similar to the peoples of Central Asia. A recent study found that Sub-Saharan Africa has the highest skin color diversity within population. From wikipedia:
http://en.wikipedia.org/wiki/Black_people

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