Some Obscurish facts
#1750
There are two major pigments in humans: eumelanin (black) and phaeomelanin (yellow). For that matter, the same two pigments are present in virtually every mammal, from mice to tigers, and can be combined to produce any color from white to red to yellow to brown to black. I'm not sure how baboons get blue muzzles, but I'm hard put to think of any other examples of mammalian coloration outside the red-yellow-black-white spectrum.
There are two major pigments in humans: eumelanin (black) and phaeomelanin (yellow). For that matter, the same two pigments are present in virtually every mammal, from mice to tigers, and can be combined to produce any color from white to red to yellow to brown to black. I'm not sure how baboons get blue muzzles, but I'm hard put to think of any other examples of mammalian coloration outside the red-yellow-black-white spectrum.