Rock Rattlesnake vs. Western Massasauga
Both are small rattlers; they meet in the desert grassland and mountains of west Texas and southern New Mexico. A: Many small scales in the Rock Rattlesnake; nine big plates, like a non-venomous snake's in the Western Massasauga. B: Widely spaced, jagged black crossbands in the Rock Rattlesnake; close-set rounded brown blotches in the Western Massasauga. C: No bold dark stripe through the eye in the Rock Rattlesnake; a broad dark stripe through the eye, edged white in the Western Massasauga. Venomous: leave rattlesnakes alone and give them room.
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