Jack Dykinga / Lightning storm with rainbow over Saguaro cactus (Carnegiea gigantea) near Redrock, Arizona State Trust, Sonoran Desert, Arizona. September 2015. Long exposure with lightning trigger.

Fabio Pupin / Peringuey's desert adder, (Bitis peringueyi), sidewinding on dune, Namib desert, Namibia, February . Non-ex.

Robert Valentic / Central bearded dragon (Pogona vitticeps) basking in mallee / heathland habitat on the Murrayville Track in the Big Desert Wilderness of north-western Victoria, Australia.

Robert Valentic / Heath Monitor (Varanus rosenbergi) male enacting a threat display, in mallee/heath habitat near Pinnaroo, South Australia.

Oriol Alamany / Snow leopard (Panthera uncia) female with juvenile, walking in snow, in Spiti Valley, Cold Desert Biosphere Reserve, Himalaya, Himachal Pradesh, India, March

Cyril Ruoso / Przewalski's Horse (Equus ferus przewalskii) herd, Gobi Desert, Mongolia

Jeff Foott / Deciduous forest and pond in autumn, Jordan Pond, Mount Desert Island, Acadia National Park, Maine

Jeff Foott / Desert, Lake Mead, Gold Butte National Monument, Nevada

Christophe Courteau / Ostriches (Struthio camelus) running in the distance in a mirage, Sossusvlei, Namib-Nauckluft National Park, Namib Desert, Namibia.

Ingo Arndt / Desert chameleon crossing sand leaving tracks, Namibia {Chamaeleo namaquensis}

Ingo Arndt / Desert chameleon on sand, Namib Naukluft NP, Namibia

Jack Dykinga / Desert landscape with flowering Sand verbena (Abronia), Desert gold (Geraea canescens), and Birdcage evening primrose (Oenothera deltoides), with the Santa Rosa Mountains in background. Anza-Borrego...