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Sidewinder vs. Southwestern Speckled Rattlesnake

Both live in the Mojave and Colorado deserts: the Sidewinder on sand, the Speckled on rocks. A: Pale with rows of small darker blotches in the Sidewinder; bands made of fine speckles in the Southwestern Speckled Rattlesnake. The Sidewinder has a raised, pointed horn-like scale over each eye. Both are venomous: leave them alone.

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Sidewinder

Crotalus cerastes

Southwestern Speckled Rattlesnake

Crotalus pyrrhus
Sidewinder vs. Southwestern Speckled 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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