Word: blurrier
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Dates: during 2000-2009
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...upshot is that after a period of diversification, Homo sapiens is in a mode of reintegration, as witness the fact that the boundaries between the former geographical variants of our species are becoming increasingly blurred. If present trends continue, those boundaries will become blurrier still. Amid all this, the conditions for incorporating meaningful new innovations into human populations have all but disappeared--and with them the prospects for significant evolutionary change...