[ReverendJames]

First things first. What do you mean by There are not three distinct races.

Is not black a race? Is not white a race? Is not mongoloid a race? What does the term 'race' mean to you?

[allmendream]

How did there come to be three races, or forty two different races, or any number of different races?

Do you have an explanation for how?

Are you at all interested in finding one, or knowing one?

Or are you like 0bama in that it is “above your pay grade”?

[PapaBear3625]

First things first. What do you mean by There are not three distinct races. Is not black a race? Is not white a race? Is not mongoloid a race? What does the term 'race' mean to you?

The black/white/mongoloid breakdown is a very rough separation. Among blacks, look at variations of sub-Saharan people: the tall Watusi, the pygmies, the lighter-skinned Khoikhoi, the darker-skinned Bantu, the Somali -- there's a lot of variation there. Similarly among Caucasians you have the fair-skinned red haired Irish versus the dark-skinned people of India, and variations in between. Among mongoloids you have Japanese, Polynesian, American Indian, etc. From one way of looking at it, there are dozens or hundreds of races.