Samwik. For your interest and edification here is the chimpanzee site again. I've earlier put it in the "Out of Asia - not Africa" on the science discussion forum but it won't hurt to put it in again.

http://www.haverford.edu/KINSC/06Journal/nature04789.pdf#search=%22genetic%20evidence%20for%20complex%20speciation%20of%20humans%20and%20chimpanzees%22

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