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Why are we like this? (Ep 95)
Big Biology
The Evolution of Skin Pigmentation
We see hair maybe being shaped as a consequence of pleiotropic selection, basically, or selection on another trait. So if we're selecting for lighter skin to maximize how much vitamin D we're able to produce, you have very clear directional selection that could produce all kinds of lightly pigmented phenotypes. With the exception of melanesians with blonde hair, where you have individuals with dark skin and light hair. It's decoupled for them. We don't really know how hairy someone is based off of their DNA. And so what about Neanderthals and Denisova? One of my toxic traits is that at the end of every conversation, I'm always like, and Neander
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