Why so little melanin on palms and soles?

[Colibri]

@Darren_Garrison

He gave the answer the OP didn’t want: “the question is not about the physiology which produces little melanin in those areas.” and claiming that there is definitly no adaptive reason for it is entirely as speculative as suggesting one.

Except for a small scientific principle called Occam’s Razor. Don’t invoke adaptive reasons for a feature if you don’t need to.

And there was certainly no reason to invoke the absurd explanation you made up.