Comment on What's the evolutionary advantage of very long hair on human heads?
Elting@piefed.social 3 days ago
I read/heard something recently that they found evidence that it has to do with bipedalism and keeping the sun off of you. Don’t need fur all over to do that if you stand up straight and grow hair from the top. Still, adaptation and trait selection is incredibly complicated and you probably can’t boil this one down into a nice answer.
bluGill@fedia.io 3 days ago
So why am I bald. Worse, I'm the whitest person in whatever city I'm in (when I was in Stockholm it was a tie), and as such burn easially if the sun hits my head.
SuiXi3D@fedia.io 3 days ago
Because all your testosterone receptors are on the top of your head, and when those receptors are doing their job the chemical that’s released has the side effect of inhibiting hair growth.