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Twin-spotted Rattlesnake vs. Prairie Rattlesnake

Their ranges barely touch in southeastern Arizona. A: Two rows of small dark spots on grey, joining into one row near the tail in the Twin-spotted Rattlesnake; one row of big dark blotches edged pale in the Prairie Rattlesnake. B: One dark stripe behind the eye in the Twin-spotted Rattlesnake; two thin pale lines across the side of the face in the Prairie Rattlesnake. Both Ridge-nosed and Twin-spotted Rattlesnakes are protected in Arizona. Venomous: leave rattlesnakes alone and give them room.

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Twin-spotted Rattlesnake

Crotalus pricei

Prairie Rattlesnake

Crotalus viridis
Twin-spotted Rattlesnake vs. Prairie Rattlesnake: comparison sheet with the differences marked

Photographs via iNaturalist under Creative Commons licences; the photographers are credited on the sheet.

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