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Mojave Rattlesnake vs. Sidewinder

Both live on the sandy flats of the Mojave Desert; their records overlap widely. A: A flat scale, no horn in the Mojave Rattlesnake; a raised, pointed horn-like scale in the Sidewinder. B: Crisp dark diamonds edged pale in the Mojave Rattlesnake; rows of faint, pale blotches on cream or tan in the Sidewinder. The Sidewinder is small (to 33 in) and moves sideways, leaving J-shaped tracks. Both are venomous: leave them alone.

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Mojave Rattlesnake

Crotalus scutulatus

Sidewinder

Crotalus cerastes
Mojave Rattlesnake vs. Sidewinder: comparison sheet with the differences marked

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

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