Daniel Heuclin / Long-nosed snake (Rhinocheilus lecontei) on white backgruond, in field studio. Panamint mountains, Death Valley National Park, California, USA. May.

Daniel Heuclin / Long-nosed snake (Rhinocheilus lecontei) portrait, Panamint mountains, Death Valley National Park, California, USA. May.

Daniel Heuclin / Long-nosed snake (Rhinocheilus lecontei) in bush, Panamint mountains, Death Valley National Park, California, USA. May.

Daniel Heuclin / Long-nosed snake (Rhinocheilus lecontei) in bush, Panamint mountains, Death Valley National Park, California, USA. May.

Jouan Rius / Manly Beacon Peak and Panamint Mountains, Death Valley National Park, California, USA, November 2012

Daniel Heuclin / Wild burro (Equus asinus) Panamint Mountains . Death Valley National Park, California, June

Jack Dykinga / Zabriskie Point at dawn with the Panamint Mountains in background, Death Valley National Park, Mojave Desert, California, USA

Jack Dykinga / Zabriskie Point at dawn with the Panamint Mountains in background, Death Valley National Park, Mojave Desert, California, USA

Jack Dykinga / Spring fed streams flowing into Salt Creek in Death Valley National Park with the Panamint Mountain reflected in dawn light, California, USA

Jack Dykinga / Crystalized salt formation across the Death Valley National Park valley floor with morning light on Badwater, the lowest point in the US at 86m below sea level with Telescope Peak in the Panamint Moun...

Daniel Heuclin / Western Whiptail Lizard (Aspidocelis tigris tigris) male, head portrait, Panamint mountains, California, USA, May, Controlled conditions.

Daniel Heuclin / Desert Rosy Boa (Lichanura trivirgata gracia) controlled conditions, Panamint mountains, Death Valley National Park, California, USA

Daniel Heuclin / Desert Rosy Boa (Lichanura trivirgata gracia) controlled conditions, Panamint mountains, Death Valley National Park, California, USA

Daniel Heuclin / Western Whiptail Lizard (Aspidocelis tigris tigris) male basking on rock, Panamint mountains, California, USA, May, Controlled conditions.

Daniel Heuclin / Western Whiptail Lizard (Aspidocelis tigris tigris) male basking on rock, Panamint mountains, California, USA, May, Controlled conditions.

Daniel Heuclin / Side blotched lizard (Uta stansburiana) Panamint mountains, Death valley National Park. California. USA. Controlled conditions.

Daniel Heuclin / Desert spiny lizard (Sceloporus magister) Panamint mountains, Death valley National Park. California. USA. Controlled conditions.

Daniel Heuclin / Desert spiny lizard (Sceloporus magister) held in the hand to show underside, Panamint mountains,Death valley National Park. California. USA. Controlled conditions.

Daniel Heuclin / Panamint rattlesnake (Crotalus mitchelli stephensi) close-up of rattling tail, Panamint mountains, Death valley NP, California, USA. Controlled conditions.

Daniel Heuclin / Panamint rattlesnake (Crotalus mitchelli stephensi) rattling tail, Panamint mountains, Death valley NP, California, USA. Controlled conditions.

Jack Dykinga / Salt formations on salt pan with Panamint Range lit by dawn light, Death Valley National Park, California

Jack Dykinga / Salt crystal formations in partially crystalised salty lake, Panamint Range in distance with dawn light reflected in water, Death Valley National Park, California

Jack Dykinga / Salt lake with crystalised patterns, Panamint Mountains in background, dawn, Death Valley National Park, California

Jack Dykinga / Salt lake with crystalised patterns, Panamint Mountains in background, dawn, Death Valley National Park, California

Jack Dykinga / Creosote bushes (Larrea tridentata) in-amongst Desert Trumpets (Eriogonum trichopes) Panamint Valley, Death Valley National Park, California

Jack Dykinga / Panamint Valley's only remaining pool of water in it's dry lake bed, sunset light on Panamint Mountains, Death Valley National Park, California

Tim Fitzharris / Panamint Range reflected in standing water at Badwater, Death Valley National Park, California

Daniel Heuclin / Great Basin gophersnake (Pituophis catenifer deserticola) coiled up on rocks, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Great Basin gophersnake (Pituophis catenifer deserticola) resting in the shade, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Great Basin gophersnake (Pituophis catenifer deserticola) resting in the shade, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Great Basin gophersnake (Pituophis catenifer deserticola) resting, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Mohave glossy snake (Arizona elegans candida) resting on rocks, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Mohave glossy snake (Arizona elegans candida) resting on rocks, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Mohave glossy snake (Arizona elegans candida) resting on rocks, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Baja California lyresnake (Trimorphodon lyrophanes) stretching out from undergrowth with tongue out, Panamint Mountains, Death Valley National Park, California, USA..

Daniel Heuclin / Baja California lyresnake (Trimorphodon lyrophanes) with tongue out, Panamint Mountains, Death Valley National Park, California, USA..

Daniel Heuclin / Mohave glossy snake (Arizona elegans candida) resting on rocks, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Mohave glossy snake (Arizona elegans candida) resting on rocks, Panamint Mountains, Death Valley National Park, California, USA.

Daniel Heuclin / Baja California lyresnake (Trimorphodon lyrophanes) with tongue out, resting on rocky ground, Panamint Mountains, Death Valley National Park, California, USA..