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Humans Evolved From a Single Origin In Africa
Invisible Pink Unicorn writes "Researchers at the University of Cambridge have combined studies of global human genetic variations with skull measurements worldwide to show conclusively the validity of the single origin hypothesis. The alternative hypothesis contended that different populations independently evolved from Homo erectus to Home sapiens in different areas. The lead researcher explains, 'The origin of anatomically modern humans has been the focus of much heated debate. Our genetic research shows the further modern humans have migrated from Africa, the more genetic diversity has been lost within a population. However, some have used skull data to argue that modern humans originated in multiple spots around the world. We have combined our genetic data with new measurements of a large sample of skulls to show definitively that modern humans originated from a single area in Sub-saharan Africa.' The article abstract is available from Nature."
You got to be the dumbest person I have ever met. Was that really a serious question?
1. Dark pigmentation is a protection against the sun.
2. When people migrate north were the sun is weaker, over time, the need for sun protection disappears and people lose the pigmentation, hence becoming lighter.
If you mod me down, I *will* introduce you to my sister!
What does that have to do with anything I said in the original submission or my OP?