February 6th, 2009

Psyche
  • gwinna

Your Family May Once Have Been A Different Color

"Our original estimates were that [skin color changes] occurred perhaps at a more stately pace," Jablonski says. But now they're finding that a population can be one color (light or dark) and 100 generations later — with no intermarriage — be a very different color. Figuring 25 years per generation (which is generous, since early humans walked naked through the world — clothes slow down the rate), that's an astonishingly short interval.

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