[Pharmboy]

Disagree. And, that is part of what Leroi talks about--there is a diversity of proteins in the races--this goes beyond skin deep.

[Redcloak]

There are differences between groups, but these arise from either geographic isolation or mating practices. There are differences between Hawaiians and Tahitians, but most people would call them both Polynesian. There are differences between Chumash and Tongva, but we still call them both Indian. In one case, miles of ocean caused differences to arise; in the other, it was mating practices. If you're going to make minor genetic traits the basis for assigning race, then you'll slice-n-dice the species into groups so small that individual families would count as distinct races.