William Amos: Did Sapiens interbreed with Neanderthals?

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It will be a few days before I can read the pre-print. When I do, I will be looking at these 2 issues closely:

  1. To what mechanisms does he ascribe the radically faster mutation rate in Africa? My prior is that mutation rates within a species do not vary across time or geography in the absence of explainable causes.

  2. How is European H Sapiens DNA similarity with Neandertalis DNA explained? Amos seems to focus on explaining dissimilarity between African and European DNA, but the similarity with Neanderthal DNA must also be explained.

Merry Christmas to all!

Chris

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