Anthropozoology

Just as “there are no human races, just the one species: [H]omo sapiens”, [1] so there are no equine breeds, just the one species: Equus caballus; for, since intra-specific categories are subsumed by definition under just the one species, those categories are somehow obviated.

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[1] Simon Underdown, “Race against time”, Comment is Free (The Guardian’s weblog), 12th December 2007. (Italics and capitalisation added.)