John Cancalosi / Desert Tarantula {Aphonopelma chalcodes} close-up o f mouthparts, Sonoran Desert, Arizona, USA.

Daniel Heuclin / Panamint rattlesnake (Crotalus stephensi) with tongue out and rattle raised, on rock. Amargosa Desert, Nye County, Nevada. May.

Daniel Heuclin / Panamint rattlesnake (Crotalus stephensi) on rock, Amargosa Desert, Nye County, Nevada. May.

Daniel Heuclin / Panamint rattlesnake (Crotalus stephensi) on rock, tongue out and rattle raised. Amargosa Desert, Nye County, Nevada. May.

Jack Dykinga / Mesquite Dunes, with sand patterned ridges against the Amargosa Mountains in afternoon light. Death Valley National Park, California, USA, January.

Jack Dykinga / Mesquite Dunes with sand patterned ridges against the Amargosa Mountains in afternoon light. Death Valley National Park, California, USA, January.

Jack Dykinga / Mesquite Dunes with sand patterned ridges against the Amargosa Mountains in afternoon light. Death Valley National Park, California, USA, January.

Daniel Heuclin / Red coachwip or Red racer (Masticophis flagellum piceus), Amargosa desert, Nevada, May.

Richard Herrmann / Tecopa, looking north-west to the Nopah range, Amargosa Desert, California

Richard Herrmann / Brittlebush (Encelia farinosa), Jubilee Pass, Black Mountains, Amargosa Desert, California

Richard Herrmann / Barrel Cactus (Ferocactus sp) and Amargosa River, near China Ranch, Amargosa Desert, California

Richard Herrmann / Cracked mud, looking east towards the Nopah Range, Amargosa Desert, Tecopa, California

Jack Dykinga / Ripples on sand dunes with Amargosa Mountains in background, Death Valley National Park, California

Jack Dykinga / Flora in stoney alluvial sediment of the Amargosa Mountain Range, Desert Golds (Geraea canescens) and Phacelia (Phacelia crenulata) Death Valley National Park, California

Richard Herrmann / China Ranch Date Farm, near Tecopa, Amargosa Desert, California

Richard Herrmann / Desert Sunflower (Geraea canescens), Tecopa Mountain, Amargosa Desert, California

Richard Herrmann / Natural hot springs at Tecopa, Amargosa Desert, California

Richard Herrmann / Brittlebush (Encelia farinosa) and Barrel Cactus (Ferocactus sp), Emigrant Pass, Nopah Range Wilderness, Amargosa Desert, California

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Daniel Heuclin / California dodder (Cuscuta californica) a plant parasite, growing on Creosote bush (Larrea tridentata), Amargosa desert, Nevada, USA. May.

Jack Dykinga / Alluvial watercourse drying and cracking after winter El Nino rains with a trails of flowering Desert golds (Geraea canescens) at the base of the Amargosa Mountains, Death Valley National Park, Califo...

Jack Dykinga / Desert golds (Geraea canescens) flowering after El Nino rains among the basalt hillsides of the Black Mountains, Amargosa Range, Death Valley National Park, California, USA. January.

Jack Dykinga / Desert golds (Geraea canescens) flowering after El Nino rains among the basalt hillsides of the Black Mountains, Amargosa Range, Death Valley National Park, California, USA. January.