[presidio9]

"Humans have evolved over millions of years to be completely adapted to today's environment with only slight differences between races. For example people who live at high altitude have greater lung capacity while those who live in more northerly environments have grown paler to soak up more sunlight."

Um, Homo sapiens has only been around for 200,000 years...

[UCANSEE2]

“For example people who live at high altitude have greater lung capacity while those who live in more northerly environments have grown paler to soak up more sunlight.”

Yet lighter colors reflect more sunlight/heat while darker colors absorb it.