Western Black-tailed Rattlesnake vs. Arizona Black Rattlesnake
Both live on rocky slopes and canyons of central and eastern Arizona, the Mogollon Rim and its foothills. A: Olive, yellow, golden or grey, with dark blotches in the Western Black-tailed Rattlesnake; dark grey-brown to black; some look all black in the Arizona Black Rattlesnake. B: Jagged blotches holding a few pale patches in the Western Black-tailed Rattlesnake; black blotches edged by thin white, yellow or orange lines in the Arizona Black Rattlesnake. C: Patterned like the adult, with a dark tail in the Western Black-tailed Rattlesnake; light grey with crisp dark blotches; they darken with age in the Arizona Black Rattlesnake. The Black-tailed's tail is black against a pale body; the Arizona Black is dark all over. Venomous: leave rattlesnakes alone and give them room.
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