A new paper validates a powerful method for analyzing how evolutionary selection pressures shaped human traits differently across different populations, using genomic data. Big implications that will take a while to sink in.... https://twitter.com/StuartJRitchie/status/996150353400868865 …
It's very hard to know. Here was my attempt at an answer:https://www.ncbi.nlm.nih.gov/pubmed/17094843
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