Yea, this is my third retarded post in about a week. Should be a limit huh?
Anyway, why are the bottoms of my (I’m black, HI) feet white. Like white people white (so yes, tan)? My hands also have this weird coloration. You might as well noticed this difference if you are black. Why do we not have pigment in our palms and bottom of feet?
Since the actual reason is lost in the depths of evolutionary time there’s only speculation, but one I’ve heard is that by having pale palms it’s easier to see whether they’re clean or not, so you don’t start eating your food with a hand covered in who-knows-what and get ill all the time. Similarly, you can display to others that your hands are clean more easily (also more visible in the dark). The lack of hair on the palms may also be a hygiene thing.
As for feet, well they don’t need protection from the sun since they’re usually facing away from it. An issue with feet would be stepping on spines, thorns, splinters etc. Easier to locate and pull them out if the skin’s a different colour to them. Again, a lack of hair is an advantage.
Another suggestion is that because palms and soles are hard-wearing parts of the body there was a trade-off where less pigment and more keratin is made to thicken up the skin. The lack of hair follicles also suggests a specialisation to being smooth and tough.[/quote]
Why are you discussing hair? While you’re at it, who has hair on the bottoms of their feet and palms anyway (excluding chronic masturbators, of course)?