Isn't it obvious? So their heads are closer to the Sun and don't freeze up ;-) Regarding skin tones: What often registers simply as 'black' or 'Asian' from a p

Isn't it obvious? So their heads are closer to the Sun and don't freeze up ;-) Regarding skin tones: What often registers simply as 'black' or 'Asian' from a predominantly white perspective comprises a wide variety of phenotypes and backgrounds, just as there's considerable variation in how white people from different regions or countries look.