A Western Diamond-backed Rattlesnake (Crotalus atrox) coiled in the sand at dusk.

- Image ID: BH2FJE

A Western Diamond-backed Rattlesnake (Crotalus atrox) coiled in the sand at dusk.

John Sullivan / Alamy Stock Photo

Image ID: BH2FJE

Location: Suizo Mountains, near Tucson, Arizona.