racer
snake
racer, any of several large, swift nonvenomous snakes belonging to the family Colubridae. Racers of North America belong to a single species, Coluber constrictor, and several species of the genus Elaphe in Southeast Asia are called racers. Blue racers are the central and western North American subspecies of C. constrictor; they are plain bluish, greenish blue, gray, or brownish, sometimes with yellow bellies. The eastern subspecies is called black snake; it is all black except...
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