Ridge-nosed Rattlesnake vs. Southwestern Speckled Rattlesnake
Their ranges barely touch in Arizona. A: A raised rim of upturned scales round the tip of the snout in the Ridge-nosed Rattlesnake; no rim on the snout in the Southwestern Speckled Rattlesnake. B: Pale crossbars edged dark in the Ridge-nosed Rattlesnake; bands of fine speckles, coloured like the rock in the Southwestern Speckled Rattlesnake. Both Ridge-nosed and Twin-spotted Rattlesnakes are protected in Arizona. Venomous: leave rattlesnakes alone and give them room.
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