• Absolutely not. There are no sub-sepcies of Homo sapiens. All 6 billion of us are a single interbreeding population. Racial differences are notable only for certain phenotypic characteristics (skin color, facial features, etc.) that give the illusion of separate populations. DNA sequencing tells a different story. In reality, there is just as much genetic variability between any two blacks, any two Caucasians, etc., than there is between two members of different races. For humans, "race" is not a genetically meaningful concept. BTW, the red wolf and the grey wolf are different species (not sub-species), both belong to the genus Canis.
  • 2-11-2017 Members of species usually do not mate with members of other species. If they do, there usually is no offspring. If there is, it is always sterile.

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