User blog comment:Lord of fish/Humans/Gourmands Subspecies/@comment-8505655-20130504164757

Human subspecies are not my area of expertise, but one can approach this in two ways. You could look at it in terms of "breeds" of humans, which typically are defined by ethnicity and geographical origin. ''Note: I say this in a purely scientific manner. ''Humans of two "breeds" can interbreed, which would create something of a hybrid, sort of like how breeds of dogs may be mixed. This is where concepts of race and racism can come in. I am guessing that there is only one sample in the Omnitrix for humans in this way.

However, there were also at one point numerous distinct species of hominids, such as neaderthals (not to be confused with Cro Magnons). Exactly how close they were to humans genetically is up for debate, but there is evidence of interbreeding. I would suspect that these races, were they not extinct, would have individual samples in the Omnitrix database.