A beautiful, medium-sized lizard about six inches long, the Great Basin collared lizard (Crotaphytus bicinctores) has two black collars around its neck, separating its head from a white-spotted khaki body. They are usually seen basking on boulders at Red Rock Canyon, but are easily frightened and will quickly hide in cracks. If one is captured, it will bite. These lizards have strong jaws and will even prey on other lizards alongside insects, small mammals, and plants. The tail is sturdy and rarely lost.