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by dontwearitout 1023 days ago
Is it an either-or thing? The Nature link I responded to above proposes that human ancestors were coastal dwellers for a few 10's of thousands of years to survive a climate catastrophe. How long would it take for this to start shaping physiology and behavior? This isn't my area of expertise, it's more fanciful fascination than opinion.
1 comments

Much longer for such invasive changes. Much, much longer.