Anup Shah / Common / Plains zebra (Equus quagga burchellii) and Eastern White-bearded Wildebeest herd (Connochaetes taurinus) running away from the Mara River after crossing - wide angle perspective. Masai Mara N...

Anup Shah / Rear view of Common / Plains Zebra herd (Equus quagga burchellii) approaching a crossing place on the Mara River where Grant's Gazelle (Nanger granti) and Impala (Aepyceros melampus) are waiting to cr...

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running up the bank of the Mara River - wide angle perspective Masai Mara National Reserve, Kenya. September

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August 2009.

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August 2009.

Anup Shah / Eastern White-bearded Wildebeest (Connochaetes taurinus) herd running - wide angle perspective, Masai Mara National Reserve, Kenya. August 2009.

Edwin Giesbers / A group of Konik Wild Horses (Equus ferus caballus) standing in dusty sunlight. The Netherlands, July.

Richard Du Toit / African Lion (Panthera leo) pride hunting Cape Buffalo (Syncerus caffer), Okavango Delta, Botswana

Richard Du Toit / African Elephant (Loxodonta africana) herd running towards river to drink, Chobe River, Botswana

Jenny E. Ross / African elephants (Loxodonta africana) two males fighting, East Africa

Bernard Castelein / Blackbuck (Antilope cervicapra) two males fighting, Rajasthan, India

Anup Shah / Eastern white-bearded wildebeest herd (Connochaetes taurinus) crossing the Mara River. Masai Mara National Reserve, Kenya, October 2009

Charlie Summers / African Elephant (Loxodonta africana) group covering themsleves with sand after bathing in Namutoni waterhole, Etosha National Park, Namibia, Southern Africa Klein, Namibia

Charlie Summers / Two Gemsboks (Oryx gazella) fighting, Kgalagadi TB Park of South Africa, May

Charlie Summers / Somali Wild Ass (Equus africanus somaliensis) rolling in loose dirt and kicking up dust. St. Louis Zoo. Captive

Ernie Janes / Farmer on a disc harrow pulled by a pair of Shire horses, UK, July 2009

Gerry Ellis / Dust devil racing across dry river valley, Namib-Naukluft National Park, Namibia

Donald M. Jones / American Bison (Bison bison) bulls, National Bison Range, Moise, Montana

Staffan Widstrand / Dune bashing - a Dubai motorsport, driving 4x4 cars over the sand dunes, Dubai, United Arab Emirates, February 2007

Suzi Eszterhas / African Wild Dog (Lycaon pictus) pack chasing Warthog (Phacochoerus africanus), northern Botswana

Suzi Eszterhas / African Wild Dog (Lycaon pictus) group watching Warthog (Phacochoerus africanus) escape in dust, northern Botswana

Michael D. Kern / Poison arrow frog (Dendrobates pumilio -bastimentos) gold dust morph, captive, from Central America

Anup Shah / African elephant dust bathing (Loxodonta africana) using its trunk, Masai Mara National Reserve, Kenya. March

Anup Shah / African elephant (Loxodonta africana) baby after having a dust bath, Masai Mara National Reserve, Kenya. March.

Anup Shah / African elephant (Loxodonta africana) baby after a dust bath, Masai Mara National Reserve, Kenya. March.

Anup Shah / African elephant (Loxodonta africana) baby enjoying a dust bath, Masai Mara National Reserve, Kenya. March.

Anup Shah / African elephant (Loxodonta africana) adolescent and baby enjoying a dust bath, Masai Mara National Reserve, Kenya. March.

Anup Shah / African elephant (Loxodonta africana) adolescent and baby enjoying a dust bath, Masai Mara National Reserve, Kenya. March.

Anup Shah / African elephant (Loxodonta africana) adolescent and baby enjoying a dust bath, Masai Mara National Reserve, Kenya. March.

Anup Shah / African elephant (Loxodonta africana) adolescent and baby enjoying a dust bath, Masai Mara National Reserve, Kenya. March.

Bryan and Cherry Alexander / Bottle of wine with back lighting and cobwebs.

Vincent Grafhorst / Blue Wildebeest (Connochaetes taurinus) dust bathing, Makgadikgadi, Botswana

Vincent Grafhorst / Burchell's Zebra (Equus burchellii) herd, Makgadikgadi, Botswana

Vincent Grafhorst / Burchell's Zebra (Equus burchellii) calling in dust, Makgadikgadi, Botswana

Richard Du Toit / Blue Wildebeest (Connochaetes taurinus) males sparring, Kalahari, South Africa

Richard Du Toit / Dust track through Chobe NP, Botswana, April 2009

Anup Shah / African elephant (Loxodonta africana) rolling in dust. Masai Mara Nationa Reserve, Kenya. February

Jim Brandenburg / African Elephant (Loxodonta africana)pair touching trunks in greeting at sunset, Etosha National Park, Namibia

GEORGETTE DOUWMA / Bluespotted ribbontail ray (Taeniura lymma) has created a dust cloud after digging in the sand for food. Egypt, Red Sea

Suzi Eszterhas / Mara Conservancy Patrol vehicle crossing the savanna at sunset, Masai Mara Conservancy, Kenya, September 2007

Donald M. Jones / American Bison (Bison bison) bull dust bathing, Moise, Montana

Andy Sands / Skylark (Alauda arvensis) dust bathing, Hertfordshire, England, UK

George Sanker / Bison / American buffalo (Bison bison) bulls sparring in the dust, Yellowstone National Park, Wyoming, USA, May

Wild Wonders of Europe / Radisics / Three Przewalski horses (Equus ferus przewalskii) one rolling in dust, Hortobagy National Park, Hungary, May 2009

Bernard Castelein / Blackbuck (Antilope cervicapra) two males fighting, Rajasthan, India

Andy Rouse / Common / Burchell's zebra (Equus quagga) running in dust towards river crossing, Masai Mara, Kenya

Andy Rouse / Common wildebeest (Connochaetes taurinus) herd crossing river during annual migration, Masai Mara, Kenya

Bernard Castelein / Blackbuck (Antilope cervicapra) two males fighting, Rajasthan, India

Bernard Castelein / Blackbuck (Antilope cervicapra) two males fighting, Rajasthan, India

Bernard Castelein / Blackbuck (Antilope cervicapra) male with females at sunrise, Rajasthan, India

Bernard Castelein / Blackbuck (Antilope cervicapra) male pawing the ground at sunrise, Rajasthan, India

Anup Shah / African elephant (Loxodonta africana) dust bathing, Masai Mara National Reserve, Kenya, Apr 2009,

Anup Shah / Eastern white bearded wildebeest herd (Connochaetes taurinus) running, one jumping, Masai Mara National Reserve, Kenya, August

Anup Shah / Eastern white bearded wildebeest (Connochaetes taurinus) herd running, Masai Mara National Reserve, Kenya, August

Hermann Brehm / Vicuna (Lama vicugna) rolling in dust on the ground, Pampa Galeras National Reserve, Peru

Tony Heald / Eland (Taurotragus oryx) male horning in the sand, Etosha National Park, Namibia, June

Tony Heald / Black rhinoceros (Diceros bicornis) kicking up dust at sunset, Etosha National Park, Namibia, June

Juan Carlos Munoz / Horsemen herding Spanish fighting bulls (Toros bravos) Sevilla, Andalucía, Spain, March 2008

Juan Carlos Munoz / Horsemen herding Spanish fighting bulls (Toros bravos) Sevilla, Andalucía, Spain, March 2008

Juan Carlos Munoz / Herd of Spanish fighting bulls (Toros bravos) running, Sevilla, Andalucía, Spain, March 2008

Juan Carlos Munoz / Herd of Spanish fighting bulls (Toros bravos) running, Sevilla, Andalucía, Spain, March 2008

Konrad Wothe / Domestic Horse (Equus caballus) group wrangled by cowboys, Oregon

Richard Du Toit / Acacia (Acacia sp) tree and termite mound with dust storm in background, Moremi Game Reserve, Botswana

Tony Heald / Black rhinoceros (Diceros bicornis) charging, Etosha National Park, Namibia, January

Eric Baccega / Young men holding their torches in their mouth while digging 10 meters underground in the coltan mines of Muhanga, Rwanda. This mineral is radioactive and these young miners are killing their lungs by...

Andy Rouse / Galapagos land iguana (Conolophus subcristatus) walking in habitat, Urbina Bay, Isabela Island, Galapagos

Andy Rouse / Silhouette of African Elephant (Loxodonta africana) dust bathing at sunset, Khwai River, Botswana (non-ex)

Andy Rouse / Silhouette of African Elephant (Loxodonta africana) dust bathing at sunset, Khwai River, Botswana (non-ex)

Wild Wonders of Europe / Nill / Skylark (Alauda arvensis) dust bathing on ground, Bulgaria, May 2008

Andy Rouse / African elephant (Loxodonta africana) dust bathing, Samburu GR, Kenya

Steven David Miller / Dust storm over the Arkaroola Wilderness Sanctuary, Gammon Ranges, northern Flinders Ranges, South Australia, May 2007

Tim Laman / Southern Ground hornbill (Bucorvus leadbeateri / cafer) dust bathing to clean feathers of parasites, Kruger National Park, South Africa.

Michele Westmorland / Herd of Common / Burchell's zebra (Equus quagga) running, Handa Island, Okavango Delta, Botswana

Jouan & Rius / Trucks on track through Central Australia Desert, Northern Territory, Australia

Yva Momatiuk & John Eastcott / Mustang (Equus caballus) rolling in dust, Pryor Mountain Wild Horse Range, Montana

Luiz Claudio Marigo / Aerial view of dust road near Trinidad city, capital of the Beni Department, during the 2008 flood of Mamoré River, Bolivia.

Francis Abbott / The arid mountains of the Sinai reach the shores of the Gulf of Aqaba, Sinai Peninsula, Egypt. It is mid August and the dust filled air is at 50 degrees centigrade.

David Kjaer / House / Common Sparrow (Passer domesticus) male 'dust bathing', Wiltshire, UK

Anup Shah / Wildebeest {Connochaetes taurinus} mother with juvenile amongst herd on migration, Masai Mara GR, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing the Mara River, Masai Mara National Reserve, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing the Mara River, Masai Mara National Reserve, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing the Mara River, Masai Mara National Reserve, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) herd crossing the Mara River, Masai Mara National Reserve, Kenya

Winfried Wisniewski / Blue Wildebeest (Connochaetes taurinus) crossing the Mara River during migration, Masai Mara National Reserve, Kenya

GEORGETTE DOUWMA / Peacock / argus wrasse (Halichoeres argus) in cloud of dust. Bunaken National Park, North Sulawesi, Indonesia

Shattil & Rozinski / Cowboys rounding up horses, Colorado, USA. Model released

Steven David Miller / Cattle herded by dogs and people on horses, Cape York, Queensland, Australia

Jouan & Rius / African Elephant (Loxodonta africana) dust bathing at waterhole with zebras and gazelles in the background, Etosha NP, Namibia

Carol Walker / Cowboy riding fast down the steep hill, stirring up dust, Flitner Ranch, Shell, Wyoming, USA, model released

Carol Walker / Cowboy riding fast down the steep hill, stirring up dust, Flitner Ranch, Shell, Wyoming, USA, model released

Carol Walker / Cowboy riding fast down the steep hill, stirring up dust, Flitner Ranch, Shell, Wyoming, USA, model released

Inaki Relanzon / Icelandic horses and riders, riding near Landmannalaugar, Iceland

Robert Valentic / Legless lizard {Delma tincta} cleaning dust from its eyes with its broad fleshy tongue, Sturt NP, New South Wales, Australia