Richard Herrmann / Desert Horned Lizard (Phrynosoma platyrhinos) camouflaged on sandy ground, Rainbow Basin Natural Area, Mojave Desert, California

Richard Herrmann / Mojave Rattlesnake (Crotalus scutulatus) with tongue extended, Rainbow Basin natural Area, Mojave Desert, California

Richard Herrmann / Hiker in Rainbow Basin Natural Area, Mojave Desert, California

Richard Herrmann / Desert Tortoise (Gopherus agassizii) male, Rainbow Basin Natural Area, Mojave Desert, Barstow, San Bernadino County, California

Richard Herrmann / Mojave Rattlesnake (Crotalus scutulatus) showing rattle, Rainbow Basin natural Area, Mojave Desert, California