http://news.bbc.co.uk/1/hi/sci/tech/8027269.stm
The first genetic map of Africa has been completed. As expected, the study confirms that sub-saharan africa contains more (human) genetic diversity than the rest of the world put together. Slightly less expected, perhaps, was the finding that this diversity was greatest in a region on the South African/Namibian border. Although it has not been proven, it is a well-established theory, confirmed when testable, that genetic diversity increases with the age of population; that is, the amount of time it has been settled in one finite area. This theory suggests that the above region contains the oldest human population on earth, and is likely where homo sapiens began.
