Jiri Lochman / Little red kaluta (Dasykaluta rosamodae) feeding on a grasshopper, Great Sandy Desert, Western Australia.

Tim Fitzharris / Cathedral Rock at sunset, Coconino National Forest, Arizona

Jack Dykinga / Dead Vlei, with dessicated 900 year old trees standing in the salt pan surrounded by towering red sand dunes. Namib-Naukluft National Park, Namibia. June 2013.

Jack Dykinga / Sossusvlei World Heritage Site, with curving red sand dunes and acacia trees. Namib-Naukluft National Park, Namibia. June 2013.

Jack Dykinga / Sossusvlei World Heritage Site, with curving red sand dunes and Acacia trees. Namib-Naukluft National Park, Namibia. June 2013.

Wim van den Heever / Ancient dead Camelthorn tree (Vachellia erioloba) trees with red dunes, Namib desert, Deadvlei, Sossusvlei, Namibia. August 2015.

Wim van den Heever / Ancient dead Camelthorn tree (Vachellia erioloba) trees with red dunes and mist, Namib desert, Deadvlei, Sossusvlei, Namibia. August 2015.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with red dunes, and star trails, Namib desert, Sossusvlei, Namibia. Composite.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) with red dunes and the milky way behind, Namib desert, Sossusvlei, Namibia. Composite.

Wim van den Heever / Ancient dead Camelthorn trees (Vachellia erioloba) at night with red dunes behind. Namib desert, Sossusvlei, Namibia. Composite.

Colin Monteath/ Hedgehog House / Sand dune at sunrise, Simpson Desert, Northern Territory, Australia

Hougaard Malan / Typical landscape of red dunes, grass and camelthorn trees. Namib Rand, Namibia. May 2010.

Daniel Heuclin / Red coachwip or Red racer (Masticophis flagellum piceus) eating Sceloporus lizard, Catalina foothill, Arizona, June.

Juergen Freund / Paddy melon (Cucumis myriocarpus) growing in red sand dunes of the outback. It is a prostrate or climbing annual herb occurs in southern Africa and is a weed in Australia, South Australia, Australia

Juergen Freund / Aerial of Sturt Stoney Desert with gibber rocks. Gibber rocks are millions of years wind and water weathered chalcedonised sandstone with a hardened crust of soil cemented silica, iron and manganese,...

Loic Poidevin / Eruption and molten lava flowing down the sides of the Erta ale volcano (the smoking mountain) in the Afar desert, Northern Ethiopia, February 2009

Loic Poidevin / Aerial view of hot lava in the crater of the Erta ale volcano (the smoking mountain) in the Afar desert, Northern Ethiopia, February 2009

Floris van Breugel / A rock collector explores piles of fluorescent minerals found in the tailings of the Pacific Tungsten Mine near Darwin, California. The bright colours are caused by fluorescence excited by a shortwave...

Rolf Nussbaumer / Blue-throated Hummingbird (Lampornis clemenciae) male feeding on flowering Claret Cup Cactus (Echinocereus triglochidiatus) Chisos Basin, Chisos Mountains, Big Bend National Park, Chihuahuan Desert, W...

Oriol Alamany / Dry plant in the red sand of Khazali mountains, Wadi Rum Protected Area, Jordan, April 2009

Jack Dykinga / Penstemon (Penstemon sp) in flower against Saguaro cactus (Carnegiea gigantea) Finger Rock Canyon, Santa Catalina Mountains, Arizona, USA

Jack Dykinga / Desert varnish coloured canyon walls in Navajo sandstone cliffs showing drip marks across cliff face, Colorado Plateau, Arizona, USA

Jack Dykinga / Hoodoo formations of heavily banded sandstone at night with star trails, Navajo Reservation, Arizona, USA

Jack Dykinga / Bands of red and yellow strata in petrified sand dunes, sunset, Paria Canyon-Vermilion Cliffs Wilderness, Arizona, USA

Jack Dykinga / Eroded sandstone (petrified sand dunes) in banded striated patterns at sunset, Colorado Plateau, Arizona, USA

Jeff Vanuga / Cowboys working for the Bureau of Land Management round up wild horses / mustangs to remove them from public land, Red Desert, Wyoming, USA. Model released

Shattil & Rozinski / Wild Horses / Mustangs (Equus caballus) in the Red Desert, Wyoming, USA

Shattil & Rozinski / Cumulus clouds over the Red Desert, Wyoming, USA

Juan Carlos Munoz / Flakes of dried mud, Arizona, USA

Solvin Zankl / 5000 year old tree stumps in Deadvlei dried up salt pan, with red Sossusvlei sand dunes rising in the background, Sossusvlei, Namib Desert, Namibia

Jouan & Rius / Male Red hartebeest (Alcelaphus buselaphus) fighting, Kgalagadi Transfrontier Park, Kalahari desert, South Africa

Jack Dykinga / Coastal Century Plant (Agave shawii) with red edging and spines, Sonoran Desert, Baja California Sur, Mexico, Central America

Hermann Brehm / Oryx in the dunes of the Namib Desert, Namibia. (Oryx gazella)

Tim Fitzharris / View from Grandview Point looking over sandstone canyons of Monument Basin in the Island in the Sky section of the park, Canyonlands National Park, Utah

Dave Watts / Red kangaroo male bounding towards camera. {Macropus rufus) NSW, Australia. The kangaroo is the animal long jump champion , able to clear 13m (the length of a bus) from a standing start. the human rec...

Tim Fitzharris / Paintbrush (Castilleja sp) and the Organ Rock, Arches National Park, Utah

Tim Fitzharris / Sand dunes and the Mittens, Monument Valley Navajo Tribal Park, Arizona

Larry Minden / Red Rattlesnake (Crotalus ruber) coiled on ground, Baja California, Mexico

Larry Minden / Red Rattlesnake (Crotalus ruber) with tongue extended, Baja California, Mexico

Hermann Brehm / Oryx (Oyrx gazella) in the dunes. Namib Desert, Namibia, Southern Africa

Fabio Pupin / Horned adder, (Bitis caudalis), Namib desert, Namibia, February . Non-ex.

Fabio Pupin / Horned adder, (Bitis caudalis), Namib desert, Namibia, February . Non-ex.

Oriol Alamany / Red Fox (Vulpes vulpes) tracks in altiplano bear Gette, Spiti Valley, Cold Desert Biosphere Reserve, Himalaya, Himachal Pradesh, India, March

Oriol Alamany / Red Fox (Vulpes vulpes) in the snow around Kibber, in Spiti Valley, Cold Desert Biosphere Reserve, Himalaya, Himachal Pradesh, India, March

Oriol Alamany / Red Fox (Vulpes vulpes) in the snow around Kibber, in Spiti Valley, Cold Desert Biosphere Reserve, Himalaya, Himachal Pradesh, India, March

Jeff Foott / Claret Cup Cactus (Echinocereus triglochidiatus) flowering in desert, Arches National Park, Utah

Jack Dykinga / Long Canyon on the historic Burr Trail, with Douglas fir (Pseudotsuga menziesii) against the 'varnished' canyon walls. Grand Staircase-Escalante National Monument, Utah, USA. October 2018.

Jack Dykinga / Long Canyon on the historic Burr Trail, with Douglas fir (Pseudotsuga menziesii) against the 'varnished' canyon walls with sheets of water flowing over the sandstone. Grand Staircase-Escalante...

Marie Lochman / Little red kaluta (Dasykaluta rosamondae) Great Sandy Desert, Western Australia.

Marie Lochman / Little red kaluta (Dasykaluta rosamondae) Great Sandy Desert, Western Australia.

Steven David Miller / Red-capped Robin (Petroica goodenovii), a banded male, Alice Springs Desert Park, Northern Territory, Australia. May. Captive.

Steven David Miller / Red-capped Robin (Petroica goodenovii), a banded male, Alice Springs Desert Park, Northern Territory, Australia. May. Captive.

Steven David Miller / A Red-backed Kingfisher (Todiramphus pyrrhopygius) perching on a tree branch looking for small prey below, Alice Springs Desert Park, Northern Territory, Australia. May. Captive.

Steven David Miller / Red Kangaroo (Macropus rufus) male resting in the shade during the heat of the day, Alice Springs Desert Park, Northern Territory, Australia. May. Captive.

Claudio Contreras / Red Mangrove (Rhizophora mangle) forest and desert, Balandra Reserve near La Paz, Sea of Cortez (Gulf of California), Baja California, Mexico, February

Ashley Cooper / Tin cans discarded in the mountains of the Sinai desert near Dahab, Egypt. October 2008

Ashley Cooper / Tin cans discarded in the mountains of the Sinai desert near Dahab, Egypt. October 2008

Ashley Cooper / Trekkers camp in the snow, Jebel Sirwa region of the Anti Atlas mountains of Morocco, North Africa. April 2012

Ashley Cooper / Mountains of the Sinai desert near Dahab, Egypt. October 2008.

Ashley Cooper / Windsurfers in the Red Sea resort of Dahab, Egypt, October 2008.

Ashley Cooper / Drought resistant tree in the mountains of the Sinai desert near Dahab, Egypt. October 2008.

Ashley Cooper / Drought resistant wild fig (Ficus) growing in Sinai desert, Dahab in Egypt.

Ashley Cooper / Bedouin man cooking bread on an open fire, Sinai Desert, Dahab, Egypt. October 2008.

Ashley Cooper / Bedouins with their camels in the Sinai Desert near Dahab, Egypt, October 2008.

Ashley Cooper / Path through mountains of the Sinai desert with drought resistant wild fig (Ficus) near Dahab in Egypt.

Sylvain Cordier / Wild horses, Monument valley tribal park, Navajo reserve, Utah, USA. April.

Emanuele Biggi / Red hartebeest (Alcelaphus buselaphus) in dry savannah, Etosha National Park, Namibia

Emanuele Biggi / Horned adder (Bitis caudalis) portrait of a male individual, Namibia

Vincent Grafhorst / Lava inside volcanic crater at night, Erta Ale, Danakil Depression, Ethiopia

Vincent Grafhorst / Smoke from volcanic crater at night, Erta Ale, Danakil Depression, Ethiopia

Emanuele Biggi / Horned adder (Bitis caudalis) waiting for passing prey in the Namib Desert, Brandberg, Namibia

Jeff Foott / Glacial granite rock above deciduous forest and pond in autumn, Jordan Pond, Bubble Rock, Mount Desert Island, Acadia National Park, Maine

Juergen Freund / Red sandy roads from Broome to Cape Leveque, Kimberley, Western Australia. July 2016.

Jouan Rius / Indian paintbrush in flower (Castilleja coccinea), Capitol Reef National Park, Utah, USA, April.

Jouan Rius / Claret Cup Cactus in flower (Echinocereus triglochidiatus), Capitol Reef National Park, Utah, USA, April.

Jouan Rius / Red Cliffs in Grand Staircase-Escalante National Monument, Utah, USA, March 2014.

Lucas Bustamante / Horned adder (Bitis caudalis) Swakopmund, Erongo, Namibia .

Ernie Janes / Damara red-billed hornbill (Tockus damarensis) on ground, Namib desert, Sossusvlei, Namibia March

Ingo Arndt / Experimental set-up to investigate the orientation behaviour of desert locusts (Schistocerca gregaria). The grasshopper is fixed and placed behind a fan. The wind generated by the fan causes them to f...

Francois Savigny / Gemsbok {Oryx gazella gazella} beside red sand dunes, Namib desert, Namibia

Jiri Lochman / Sturt Desert pea (Swainsona formosa), Cape Range National Park, Ningaloo Coast UNESCO Natural World Heritage Site, Western Australia.

Jiri Lochman / Sturt Desert pea (Swainsona formosa) flowers, Cape Range National Park, Ningaloo Coast UNESCO Natural World Heritage Site, Western Australia.

Jiri Lochman / Sturt Desert pea (Swainsona formosa), Cape Range National Park, Ningaloo Coast UNESCO Natural World Heritage Site, Western Australia.

Sylvain Cordier / Aerial view of the Red Centre in Australia with dry river bed, Australia, October 2009.

Sylvain Cordier / Aerial view of the Red Centre in Australia with dry river bed, Australia, October 2009.

Sylvain Cordier / Saltwater crocodile or estuarine crocodile (Crocodylus porosus) attracted with food, Kakadu, Northern territory, Australia

Jen Guyton / Horned adder (Bitis caudalis) camouflaged in iron-rich sand in the Kalahari Desert, South Africa.

Tim Fitzharris / Claret Cup Cactus (Echinocereus triglochidiatus) flowering near Barker Pond Trail, Joshua Tree National Park, California

Emanuele Biggi / Horned adder (Bitis caudalis) camouflaged in its environment, Namib Naukluft National Park, Namibia June

Emanuele Biggi / Horned adder (Bitis caudalis) camouflaged in its environment, Namib Naukluft National Park, Namibia June

Emanuele Biggi / Horned adder (Bitis caudalis) camouflaged in its environment, Namib Naukluft National Park, Namibia

Emanuele Biggi / Horned adder (Bitis caudalis) camouflaged in its environment, Namib Naukluft National Park, Namibia

Emanuele Biggi / Horned adder (Bitis caudalis) camouflaged in its environment, Namib Naukluft National Park, Namibia

Emanuele Biggi / Horned adder (Bitis caudalis) camouflaged in its environment, Namib Naukluft National Park, Namibia

Emanuele Biggi / Horned adder (Bitis caudalis) camouflaged in its environment, Namib Naukluft National Park, Namibia

Emanuele Biggi / Horned adder (Bitis caudalis) camouflaged in its environment, Namib Naukluft National Park, Namibia