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Humans evolving 100 times faster than historical levels.

latimes.com

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Re: Humans evolving 100 times faster than historical levels.

#6
post #3

"Nobody 10,000 years ago had blue eyes," Hawks said. "Why is it that blue-eyed people had a 5% advantage in reproducing compared to non-blue-eyed people? I have no idea." Now that's interesting. Any theories?

The theory I've heard is that a blue iris makes it easier to see pupil dilation, which is an indication of attraction. People are more likely to hook up when they can tell the other person is attracted to them, so...

Re: Humans evolving 100 times faster than historical levels.

#8
I was confused by the part that said white skin allows more sun light to be absorbed. I'm quite sure this is wrong:

Dark skin means more light is absorbed, and therefore doesn't bounce back at the viewer's eyes.

the only explanation I can think of is that the rules are somehow different for light outside the visible range?

Re: Humans evolving 100 times faster than historical levels.

#9
post #8

I was confused by the part that said white skin allows more sun light to be absorbed. I'm quite sure this is wrong: Dark skin means more light is absorbed, and therefore doesn't bounce back at the viewer's eyes. the only explanation I can think of is that the rules are somehow different for light outside the visible range?

I'm guessing the absorption they are talking about happens below the pigment level.
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