Edwin Giesbers / Wild cat (Felis silvestris) in snowstorm captive, Germany

Tui De Roy / Emperor Penguin (Aptenodytes forsteri), Prydz Bay, eastern Antarctica

Michael W. Richards / Domesticated Indian elephants (Elephas maximus) being walked to forest at end of the working day, Pench Tiger Reserve, Madhya Pradesh, India

Ole Jorgen Liodden / King Penguins (Aptenodytes patagonicus) at sunrise on the coast of South Georgia Island. Southern Ocean, November.

Diane McAllister / Brown bear (Ursus arctos) strolling along the beach in the rain, looking towards the camera. Lake Clark National Park, Alaska, USA, July

Ingo Arndt / King Penguin (Aptenodytes patagonicus) group returning from the sea, Volunteer Point, Falkland Islands

Philip Stephen / Fishing vessel "Ocean Pioneer" nearing Fraserburgh Harbour, with waves crashing against the harbour wall. Scotland, February 2011.

Mark Carwardine / Hawaiian goose / Nene (Branta sandvicensis) looking down, Slimbridge, Gloucestershire, UK, Captive, native to Hawaii, USA, Vulnerable species, September

Orsolya Haarberg / Icelandic horses out in the snow, Iceland, April 2010

Markus Varesvuo / Bearded vulture (Gypaetus barbatus) flying, Spain, November

John Cancalosi / Grey Wolf (Canis lupus) head portrait of male, in snow, Captive

Angelo Gandolfi / Mouflon ram (Ovis musimon) portrait, standing in forest, Foret de Valdu Niellu, Corte, Parc Naturel Regional de Corse, Corsica island, France, February

Andrew Parkinson / Pied wagtail (Motacilla alba yarrellii) standing on snow covered ground, with wind blowing snow around, Derbyshire, UK, January (non-ex)

Andrew Parkinson / Mute swan (Cygnus olor) walking across frozen lake during a blizzard. Derbyshire, UK, January (non-ex)

Andrew Parkinson / Black-headed gulls (Chroicocephalus ridibundus) small flock in winter plumage, backlit by evening sun, taking off from lake. Derbyshire, UK, March (non-ex)

Philip Stephen / Fishing vessel "Harvester" heading to North Sea fishing grounds in stormy weather. Europe, November 2010. Property released.

Philip Stephen / Fishing vessel "Harvester" on a stormy North Sea. Europe, November 2010. Property released.

Guy Edwardes / Ruppell's Griffon Vulture (Gyps rueppellii) flying against storm clouds, coming in to land on carcass Serengeti National Park, Tanzania, Africa, February

David Woodfall / Young Bangladeshi child holding young brother in monsoon rain washing in pond, Ganges delta, Bangladesh, December 2008

Philip Stephen / Fishing vessel "Harvester" and the "Jotun B" oil production platform. North Sea, May 2010.

Philip Stephen / Fishing vessel "Harvester" and the "Jotun B" oil production platform. North Sea, May 2010.

Igor Shpilenok / Red fox in a snow storm (Vulpes vulpes) Winter winds on Kamchatka can reach 40 meters a second. Kronotskty Zapovednik, Kamchatka, Russia

Andy Rouse / Aerial view of ice ridges at front of Peters Glacier, King Haakon Bay, South Georgia, Antarctica, December 2006

Donald M. Jones / Timber Wolf (Canis lupus) in winter, western Alberta, Canada

Donald M. Jones / White-tailed Jack Rabbit (Lepus townsendii) hopping in winter coat, eastern Montana

Donald M. Jones / Coyote (Canis latrans), western Montana

Jasper Doest / Gray Wolf (Canis lupus) pair in the snow, Norway

Jan Vermeer / Atlantic Puffin (Fratercula arctica) flying in heavy snowfall, Norway

Kevin Schafer / Mountain Lion (Puma concolor) cubs playing in snow, Utah

Jan Vermeer / Adelie Penguin (Pygoscelis adeliae), Antarctica

Jan Vermeer / Emperor Penguin (Aptenodytes forsteri) chick pair, Snow Hill Island, Antarctica

Jan Vermeer / Emperor Penguin (Aptenodytes forsteri) chicks, Snow Hill Island, Antarctica

Jan Vermeer / Emperor Penguin (Aptenodytes forsteri) chicks, Antarctica

Jan Vermeer / Chinstrap Penguin (Pygoscelis antarctica) pair courting, Southern Thule, South Sandwich Islands, Antarctica

Tim Fitzharris / Bobcat (Lynx rufus) mother and kitten in snowfall, North America

Sergey Gorshkov / Red Fox (Vulpes vulpes) smelling snow, Kamchatka, Russia

Yva Momatiuk & John Eastcott / Adelie Penguin (Pygoscelis adeliae) flapping wings, Holtedahl Bay, Antarctica

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Michael Durham / Red-eyed Tree Frog (Agalychnis callidryas) in rain, native to Central and South America

Mitsuaki Iwago / King Penguin (Aptenodytes patagonicus) at edge of ice shelf, Antarctica

Mitsuaki Iwago / Blue Wildebeest (Connochaetes taurinus) herd in dust, Serengeti National Park, Tanzania

Mitsuaki Iwago / African Lion (Panthera leo) mother walking with three cubs, Serengeti National Park, Tanzania

Mitsuaki Iwago / African Lion (Panthera leo) female stalking Blue Wildebeest (Connochaetes taurinus) herd, Serengeti National Park, Tanzania

Mitsuaki Iwago / Beagle (Canis familiaris) two puppies standing in snow, Japan

Konrad Wothe / Coyote (Canis latrans) in winter, Alleens Park, Colorado

Thomas Mangelsen / Polar Bear (Ursus maritimus) rolling in snow, Hudson Bay, Churchill, Manitoba, Canada

Sumio Harada / Mountain Goat (Oreamnos americanus) leaping in snow, Rocky Mountains, Glacier National Park, Montana

Sumio Harada / Bighorn Sheep (Ovis canadensis) males butting heads while a third looks on, Rocky Mountains, North America

Konrad Wothe / Siberian Tiger (Panthera tigris altaica) in snow, Siberian Tiger Park, Harbin, China

Konrad Wothe / Siberian Tiger (Panthera tigris altaica) walking in snow, Siberian Tiger Park, Harbin, China

Yva Momatiuk & John Eastcott / Bald Eagle (Haliaeetus leucocephalus) adult flying against clear blue sky, spring, south central Alaska

Konrad Wothe / Whooper Swan (Cygnus cygnus) pair arguing at wintering site, Kussharo-ko, Hokkaido, Japan

Yva Momatiuk & John Eastcott / Barn Owl (Tyto alba) portrait against blue sky in desert, spring, Arizona-Sonora Desert Museum, Arizona

Thomas Mangelsen / Polar Bear (Ursus maritimus) sitting up, Churchill, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) mother with cub in snow, Churchill, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) mother with cub, Churchill, Manitoba, Canada

Tim Fitzharris / Timber Wolf (Canis lupus) portrait of pair sitting in snow, North America

Colin Monteath / Climber enjoying view of Mt CookÆs Caroline Face from Ball Pass, Mt Cook National Park, New Zealand

Thomas Mangelsen / Short-tailed Weasel (Mustela erminea) camouflaged against snowbank, Grand Teton National Park, Wyoming

Thomas Mangelsen / Polar Bear (Ursus maritimus) mother and cub, Churchill, Manitoba, Canada

Colin Monteath / Climber hauls load above 4,200 meter camp on the west buttress route of Mt Denali or Mt McKinley which reaches 6,194 meters elevation, Denali National Park and Preserve, Alaska

Matthias Breiter / Polar Bear (Ursus maritimus) adult male charging opponent, Churchill, Manitoba, Canada

Konrad Wothe / Giant Panda (Ailuropoda melanoleuca) eating bamboo, Wolong Valley, China

Konrad Wothe / Siberian Tiger (Panthera tigris altaica) resting in snow, Siberian Tiger Park, Harbin, China

Konrad Wothe / Emperor Penguin (Aptenodytes forsteri) parents with chicks, Antarctica

Konrad Wothe / Giant Panda (Ailuropoda melanoleuca), Wolong Valley, Himalaya, China

Gerry Ellis / Snowy Owl (Nyctea scandiaca) camouflaged against snow, North America

Matthias Breiter / Polar Bear (Ursus maritimus) male resting on ice, Churchill, Manitoba, Canada

Matthias Breiter / Polar Bear (Ursus maritimus) adult portrait, Churchill, Manitoba, Canada

Norbert Wu / Orca (Orcinus orca) pod surfacing in icebreaker channel, must find open pockets of water to breathe, McMurdo Sound, Antarctica

Konrad Wothe / Chinstrap Penguin (Pygoscelis antarctica), Antarctica

Mitsuaki Iwago / Blue Wildebeest (Connochaetes taurinus) herd descending cliff during migration, Serengeti

Mitsuaki Iwago / Polar Bear (Ursus maritimus) close up portrait, Churchill, Canada

Jim Brandenburg / Timber Wolf (Canis lupus) camouflaged amid snowy trees, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) pack, Minnesota

Michio Hoshino / Bald Eagle (Haliaeetus leucocephalus) perching on a snag, Alaska

Tim Fitzharris / Red Fox (Vulpes vulpes) pair in snow fall showing the black and red markings of their cross phase, Montana

Jim Brandenburg / Timber Wolf (Canis lupus) trio running through deep snow, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) howling in light snowfall, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) pair running through deep snow, Minnesota

Jim Brandenburg / Timber Wolf (Canis lupus) portrait, Minnesota

Michael Quinton / Long-tailed Weasel (Mustela frenata) camouflaged in white winter coat, Idaho

Michael Quinton / Northern Hawk Owl (Surnia ulula) perching on branch during snowfall in spring, Alaska

Michio Hoshino / Arctic Ground Squirrel (Spermophilus parryii) peeking out of its hole, Alaska

Jim Brandenburg / American Bison (Bison bison) herd stampeding, South Dakota

Michio Hoshino / Polar Bear (Ursus maritimus) pair loafing, Churchill, Manitoba, Canada

Mitsuaki Iwago / Saint Bernard (Canis familiaris) puppies nuzzling in snow, Japan

Tui De Roy / Marine Iguana (Amblyrhynchus cristatus) pair sky pointing to keep cool in hot sun, Punta Espinosa, Fernandina Island, Galapagos Islands, Ecuador

Tui De Roy / Blue-footed Booby (Sula nebouxii) pair overlooking nesting colony, Punta Vicente, Isabella Island, Galapagos Islands, Ecuador

Tui De Roy / Gentoo Penguin (Pygoscelis papua) commuting flock climbing snowy slope, Couverville Island, Antarctica

Tui De Roy / Adelie Penguin (Pygoscelis adeliae) group crowding on melting summer ice floe, Possession Island, Ross Sea, Antarctica

Tui De Roy / Bearded Seal (Erignathus barbatus) resting on ice floe near Wagon Way Glacier, Magdalenefjorden, Spitsbergen, Svalbard, Norwegian Arctic

Michio Hoshino / Polar Bear (Ursus maritimus) cubs on snow field, Churchill, Manitoba, Canada

Mitsuaki Iwago / Adelie Penguin (Pygoscelis adeliae) with wings outstretched, Antarctica

Jim Brandenburg / Arctic Wolf (Canis lupus) in blizzard, Ellesmere Island, Nunavut, Canada