The best estimates are that it takes a minimum of fifty thousand years for an adaptation to show up in the human genome. This is called evolutionary lag... Our hunter-gatherer ancestors had a very different lifestyle... (Daniel Levitin)

The best estimates are that it takes a minimum of fifty thousand years for an adaptation to show up in the human genome. This is called evolutionary lag... Our hunter-gatherer ancestors had a very different lifestyle...

Daniel Levitin

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