Andy Rouse / Polar Bear (Ursus maritimus) portrait in sea-ice landscape. Wide angle / fish-eye shot. Svalbard, Norway, September.

Gavin Hellier / Panoramic view of the foggy skyline of San Francisco at sunrise, California, USA 2011

Mark Carwardine / Hands of a tourist leaning from boat to touch the mouth of a friendly Grey whale (Eschrichtius robustus) lying on the surface, San Ignacio Lagoon, Baja California, Mexico, April 2009

Floris van Breugel / Tiny thimble jellyfish (Linuche unguiculata) drift with the current in the calm turquiose waters of a lagoon in Ofu, American Samoa. The window of sky is called Snell's Window, caused by refraction of...

Andy Rouse / Polar bear (Ursus maritimus) standing against expedition ship, taken with extreme wide angle lens, Svalbard, Arctic September 2011

Andy Rouse / Polar bear (Ursus maritimus) on pack ice taken with fisheye lens, Svalbard, Arctic September 2011

Shibai Xiao / Marbled eel (Anguilla marmorata) captured by local people and being held up in net, Hainan Island, China. No release available.

Alex Mustard / Circular fisheye photograph of a colourful coral reef with silhouetted diver, East End, Grand Cayman, Cayman Islands, British West Indies. Caribbean Sea. Model released

Graham Eaton / An underwater view of a woodland stream, River Glaslyn, Snowdonia NP, Gwynedd, Wales, UK, May

Graham Eaton / A split-level image of a mountain stream, in autumn, with water droplets on lens, Nant Ffrancon Valley, Snowdonia NP, Gwynedd, Wales, UK, October

Alex Hyde / Alpine moon daisy (Leucanthemopsis alpina) on mountainside, fisheye lens. Nordtirol, Austrian Alps, Austria, June.

Andy Rouse / Polar Bear (Ursus maritimus) sleeping on pack ice. Wide angle / fish-eye shot. Svalbard, Norway, September.

Peter Cairns / 2020VISION / Group of tourists wearing waterproof clothing and life jackets in zodiac boat for seabird safari tour around Bass Rock, North Berwick, Firth of Forth, Lothian, Scotland, UK, August 2011

Alex Mustard / 2020VISION / View up through tidepool of 2020Vision young photographer, Bertie Gregory, Falmouth, Cornwall, UK, July 2011. Model released. Did you know? Life isnt easy in a rock pool! Animals here must deal with c...

Kathryn Jeffs / Camera lens view of the 'Golden Fleece' in the centre of a horseshoe shaped iceberg off the Antarctic Peninsula, Antarctica, February 2009, Taken on location for BBC Frozen Planet series

Guy Edwardes / 2020VISION / Traditionally managed wildflower meadow with Ox-eye daisy (Leucanthemum vulgare), Hardington Moor NNR, Somerset, UK, May 2011, fish-eye lens. Did you know? Ox-eye daisies used in Medieval times to tre...

Guy Edwardes / 2020VISION / Traditionally managed wildflower meadow with Ox-eye daisy (Leucanthemum vulgare), Hardington Moor NNR, Somerset, UK, June 2011, fish-eye lens. Did you know? Around 70% of UK farmland is under agri-env...

Guy Edwardes / 2020VISION / View south with willow trees over Walton Moor on the Somerset Levels from Walton Hill on a misty winter evening with snow on the ground, Somerset, UK, December 2010. Photographer quote: 'The temperatu...

Lisa Hoffner / A baby orphan Elephant (Loxodonta africana), named Murka, wounded by a poacher's spear is comforted by the touch of another elephant's trunk from outside its pen. David Sheldrick Wildlife Trust Eleph...

John MacPherson / 2020VISION / Two Bottlenose dolphins (Tursiops truncatus) breaching, Moray Firth, Inverness-shire, Scotland, UK, August. Photographer quote: 'After several frustrating hours with too short a lens and dolphins too...

Peter Cairns / 2020VISION / Red deer (Cervus elaphus) stag in pine forest in snow blizzard, Alvie Estate, Cairngorms NP, Highlands, Scotland, UK, March. Photographer quote: "At times I couldn't see this red deer stag such was th...

Anup Shah / Masai giraffe (Giraffa camelopardalis tippelskirchi) crossing the Mara River - wide angle perspective, Masai Mara National Reserve, Kenya. August 2009.

Edwin Giesbers / Portrait of Grey Heron (Ardea cinerea) looking directly at lens. The Netherlands, June.

Matthias Breiter / Ruffed Grouse (Bonasa umbellus) male drumming, Kenora, Ontario, Canada

Juan Carlos Munoz / Olive tree (Olea europaea) in Sierra de Cardena y Montoro Natural Park. Andalusia, Spain, Feb 2010

Yva Momatiuk & John Eastcott / Sockeye Salmon (Oncorhynchus nerka) group swimming in fast current during spawning run, Adams River, Roderick Haig-Brown Provincial Park, British Columbia, Canada

Neil Lucas / Panoramic view, Little Razorback Island, Dellbridge Islands, Antarctica, October 2008, Digitally stitched image

Jenny E. Ross / Snow Geese (Chen caerulescens) and Ross's Geese (Chen rossii) taking off from field where they have been feeding, Imperial Valley, California, USA.

Ernie Janes / Boer domestic goat (Capra hircus) waiting to be fed, Norfolk, UK, September

Ernie Janes / Farmyard chicken (Gallus gallus domesticus) free range, mixed breed, Norfolk, UK. Property released

Ernie Janes / Farmyard chicken (Gallus gallus domesticus) free range, mixed breed, perched on fence, Norfolk, UK. Property released

Floris van Breugel / Fisheye view from within Antelope Canyon, near Page, South West Arizona, USA, January 2008

Alex Mustard / Female Grey seal (Halichoerus grypus) approaching a snorkeller's fins, Lundy Island, Devon, England, UK, North East Altantic Ocean. July 2010. Model released

Alex Mustard / Female Grey seal (Halichoerus grypus) mouthiing the camera lens, Lundy Island, Devon, England, UK. July

Alex Mustard / Male Grey seal (Halichoerus grypus) mouths the camera lens, Lundy Island, Devon, England, UK. North East Altantic Ocean. July

Alex Mustard / Male Great white shark (Carcharodon carcharias) with sunrays, Guadalupe Island, Mexico, Pacific Ocean.

Solvin Zankl / As soon as it entered the water the young Olive ridley sea turtle (Lepidochelys olivacea) struggles against the swell to swim away from the coast. The swimming frenzy lasts for approximately 48 hours...

Edwin Giesbers / Arctic tern (Sterna paradisaea) in flight, vocalising, aggresive behaviour, Farne Islands, Northumberland, UK, June

Michele Westmorland / Split level view of scuba diver with PR Aquanauts boat in Grenada, Caribbean. May 2009. Property released and diver model released.

Michel Roggo / Tench (Tinca tinca) on the surface of a turbid marsh pond, with Rudd (Scardinius erythrophthalmus) above, Fribourg, Switzerland, 2004

Neil Lucas / Sun shining through the branches of a Dragons blood tree (Dracena cinnibaris) in mountainous desert, Socotra, Yemen, February 2007

Neil Lucas / Sundog / Parhelion (circle of light around the sun) with large ice fumerole in the foreground, McMurdo Sound, Ross Sea, Antarctica, November 2008

Neil Lucas / Dragons blood trees (Dracena cinnibaris) and Desert rose (Adenium obesum socotranum) in Momi Valley, Socotra Island, Yemen, February 2008

Neil Lucas / Glacier rising up out of sea ice with ice crack visible, Ross Sea, Antarctica, November 2008

Dan Burton / Reindeer (Rangifer tarandus) in enclosure, Lapland, Sweden, November 2009

Jerry Monkman / Man bouldering in "The Boulders" section of Pawtuckaway State Park, New Hampshire, USA, September 2008. Model released.

Jim Brandenburg / Sundogs, also known as mock sun, with snow field, Minnesota

Wild Wonders of Europe / Lundgre / Common dolphins (Delphinus delphis) surfacing, Fisheye lens. Pico, Azores, Portugal, June 2009

Pete Oxford / Black-browed Albatross (Thalassarche melanophrys) on nest, Keppel Island, Falkland Islands

Pete Oxford / Black-browed Albatross (Thalassarche melanophrys) on pedestal nest, Keppel Island, Falkland Islands

Jeff Vanuga / Sunset over Brooks Mountain in the Shoshone National Forest, Wyoming, USA, December 2008

Wild Wonders of Europe / Lesniewski / Photographer, Grzegorz Lesniewski with his camera, model released, Hohe Tauern National Park, July 2008

Yva Momatiuk & John Eastcott / Saplings amidst coniferous trees burned by forest fire, Yellowstone National Park, Wyoming

Chris Newbert / Hawksbill Sea Turtle (Eretmochelys imbricata) and Leather Coral (Sarcophyton sp) on reef, Indonesia

Chris Newbert / Soft Coral (Dendronephthya sp) on reef, Indonesia

Scott Leslie / Northern Green Frog (Rana clamitans melanota) floating in water, West Stoney Lake, Nova Scotia, Canada

Tui De Roy / Campbell Albatross (Thalassarche impavida) immature flying, North Cape, Campbell Island, sub-Antarctica New Zealand

Theo Allofs / African Lion (Panthera leo) female portrait in rehabilitation center, Namibia

Theo Allofs / African Lion (Panthera leo) female portrait in rehabilitation center, Namibia

Norbert Wu / Tiger Shark (Galeocerdo cuvieri) portrait, Bahamas, Caribbean

Luciano Candisani / Black-browed Albatross (Thalassarche melanophrys) portrait, Steeple Jason Island, Falkland Islands

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

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

Chris Newbert / Blue Sea Star (Linckia laevigata) and schooling baitfish, 20 feet deep, Papua New Guinea

Chris Newbert / Papuan Jellyfish (Mastigias papua) 20 feet deep, Solomon Islands

Piotr Naskrecki / Horned Leaf Chameleon (Brookesia superciliaris) camouflaged against brown leaf, Madagascar

Tim Fitzharris / Surf crashing on rocks at Keoneloa Bay, Kauai, Hawaii

Tim Fitzharris / Looking up at blue sky through a canopy of fall colored Aspen trees, Colorado

Konrad Wothe / Pasque Flower (Pulsatilla sp) on hillside beneath shining sun, Barakchin Island, Lake Baikal, Russia

Konrad Wothe / Dandelion (Taraxacum officinale) ready to release its seeds, Germany, introduced into North America as a salad green now is invasive weed

Richard Du Toit / African Elephant (Loxodonta africana) bull sniffing with its trunk, summer, Chobe National Park, Botswana

Matthias Breiter / Northern lights or aurora borealis over illuminated tent, boreal forest, North America

Matthias Breiter / Northern lights or aurora borealis over boreal forest, North America

Matthias Breiter / Northern lights or aurora borealis over illuminated tent, boreal forest, North America

Thomas Mangelsen / Grizzly Bear (Ursus arctos horribilis) in autumn tundra landscape, Denali National Park and Preserve, Alaska

Gerry Ellis / Dromedary (Camelus dromedarius) trio, domestic camels with Bedouins at sunset, Oasis Dakhia, Great Sand Sea, Sahara Desert, Egypt

Yva Momatiuk & John Eastcott / African Elephant (Loxodonta africana) male walking in grassland, Masai Mara National Reserve, Kenya

Gerry Ellis / Umbrella Thorn (Acacia tortilis) trees at sunrise on savannah, Masai Mara, Kenya

Birgitte Wilms / Golden Cownose Ray (Rhinoptera steindachneri) school, 20 feet deep, Galapagos Islands, Ecuador

Tim Fitzharris / Absaroka Range reflected in lake, Yellowstone National Park, Wyoming

Colin Monteath / Cerro Torre and Fitzroy reflected in small pond at dawn, Loma Plieque Tumbado, Los Glaciares National Park, Patagonia, Argentina

Colin Monteath / Hiker, Cerro Torre and Fitzroy reflected in small pond at dawn, Loma Plieque Tumbado, Los Glaciares National Park, Patagonia, Argentina

Patricio Robles Gil / Glacier, St. Elias Mountain, Kluane National Park, Canada

Claus Meyer / Anavilhanas archipelago in the middle of the Rio Negro River which is 24 kilometers wide at this point, Amazon ecosystem, Brazil

Gerry Ellis / Baobab (Adansonia digitata) tree silhouetted at sunset, Tanzania

Thomas Mangelsen / Polar Bear (Ursus maritimus) walking on ice at sunset, Churchill, Manitoba, Canada

Thomas Mangelsen / Cascades of Iguacu Falls surrounded by tropical rainforest, Iguacu Falls National Park, Brazil

Thomas Mangelsen / Clouds over Yellowstone River, Hayden Valley, Yellowstone National Park, Wyoming

Colin Monteath / Mountaineer enjoying the view of Mt Everest and the Himalayan Mountains at sunset from Gokyo Ri, Khumbu, Nepal

Colin Monteath / Mt Makalu (8,462 meters) and Mt Chomolonzo (7,540 meters) bathed in dawn light, reflected in small lake, Khama Valley, Tibet

Colin Monteath / Panoramic view from Mt Makalu, elevation 8,462 meters, to Mt Everest, elevation 8,850 meters, at dawn, reflected in small lake, Khama Valley, Kharta region, Tibet

Colin Monteath / Panoramic view from Mt Makalu, elevation 8,462 meters, to Mt Everest, elevation 8,850 meters, at dawn, reflected in small lake, Khama Valley, Kharta region, Tibet

Patricio Robles Gil / Cardon (Pachycereus pringlei) cactus and flowering Common Morning Glory (Ipomoea purpurea) vines in the Miquihuana Desert, northeast Mexico

Patricio Robles Gil / Aerial view of Tamul Waterfall (330 feet high) where Rio Gallinas cascades into the Rio Santa Maria river in the Huasteca Potosina region, Mexico

Yva Momatiuk & John Eastcott / Mt Denali and Alaska Range reflected in pond in the morning light, Denali National Park and Preserve, Alaska

Yva Momatiuk & John Eastcott / Toadstool Caprocks created by erosion, near Paria River, Grand Staircase-Escalante National Monument, Utah