Juergen Freund / Common death adder (Acanthophis antarcticus) well camouflaged in its natural habitat. Queensland, Australia, February

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

Mark Raycroft / Bighorn Sheep (Ovis canadensis) two large rams in a mountain scene

Ralph Pace / Great White Shark (Carcharodon carcharias) juvenile near coast, Capitola, California

Ingo Arndt / Mountain Lion (Puma concolor) young cubs with one in tree, Torres del Paine National Park, Patagonia, Chile

Richard Robinson / Hector's dolphin (Cephalorhynchus hectori) Akaroa Harbour, South Island, New Zealand, November. Editorial use only.

Richard Robinson / Hector's dolphin (Cephalorhynchus hectori) Akaroa Harbour, South Island, New Zealand, November. Editorial use only.

Richard Robinson / Hector's dolphin (Cephalorhynchus hectori) Akaroa Harbour, South Island, New Zealand, November. Editorial use only.

Zoltan Nagy / Starlings (Sturnus vulgaris) flocking on Blackpool beach, with the town in the background. Blackpool, UK. February

Zoltan Nagy / Starlings (Sturnus vulgaris) resting on Blackpool Beach, UK. October

Zoltan Nagy / Starlings (Sturnus vulgaris) flocking with Blackpool Tower in the background. Taken from Martin Mere Nature Reserve, Blackpool, UK. November 2010.

Zoltan Nagy / Starlings (Sturnus vulgaris) murmuration at sunset with Blackpool Tower in the background. Taken from Martin Mere Nature Reserve, Blackpool, UK. November 2010.

Zoltan Nagy / Starlings (Sturnus vulgaris) on the beach in front of Blackpool Tower, England, UK, September 2010.

Chris & Monique Fallows / Common dolphin (Delphinus delphis) False Bay, Cape Town, South Africa

Bertie Gregory / Grey whale (Eschrichtius robustus) at the surface amongst bull kelp, aerial shot, Vancouver Island, British Columbia, Canada, July.

Hiroya Minakuchi / Stromatolites, colonies of blue-green algae, the oldest life form that still exists today, over three billion years old, Hamelin Pool, Shark Bay, Western Australia

Hiroya Minakuchi / Stromatolites, colonies of blue-green algae, the oldest life form that still exists today, over three billion years old, Hamelin Pool, Shark Bay, Western Australia

Hiroya Minakuchi / Southern Elephant Seal (Mirounga leonina) group on beach, South Shetland Islands, Antarctica

Luciano Candisani / Black-striped Capuchin (Sapajus libidinosus) at cave entrance, Piaui State, Brazil

Mark Raycroft / Elk (Cervus elaphus) large bull drinking from stream

Ralph Pace / Great White Shark (Carcharodon carcharias) juvenile near coast, Capitola, California

Konrad Wothe / Firefly (Lamprohiza splendidula) light tracks in forest, Bavaria, Germany

Ingo Arndt / Mountain Lion (Puma concolor) sub-adult sisters on cliff, Torres del Paine National Park, Patagonia, Chile

Ingo Arndt / Mountain Lion (Puma concolor) young cubs in shrubland, Torres del Paine National Park, Patagonia, Chile

Sean Crane / Leatherback Sea Turtle (Dermochelys coriacea) hatchling moving towards sea, Grande Riviere, Trinidad, Caribbean

Sean Crane / Leatherback Sea Turtle (Dermochelys coriacea) hatchling moving towards sea, Grande Riviere, Trinidad, Caribbean

Sean Crane / Mountain Lion (Puma concolor) cub in shrubland, Torres del Paine National Park, Patagonia, Chile

Gary Bell/ Oceanwide / Gunn's Leatherjacket (Eubalichthys gunnii) juvenile amongst sponges, Port Phillip Bay, Mornington Peninsula, Victoria, Australia

Hiroya Minakuchi / Antarctic Fur Seal (Arctocephalus gazella) pups on shore, South Georgia

Hiroya Minakuchi / Humpback Whale (Megaptera novaeangliae) surfacing, Antarctic Peninsula, Antarctica

Suzi Eszterhas / Orangutan (Pongo pygmaeus) sub-adult male, Tanjung Puting National Park, Borneo, Indonesia

Luciano Candisani / Mountain Gorilla (Gorilla gorilla beringei) sub-adult male in rainforest, Bwindi Impenetrable National Park, Uganda

SCOTLAND: The Big Picture / Beaver (castor fiber) dam on river and chewed logs, Bamff Estate, Perthshire, Scotland, UK.

SCOTLAND: The Big Picture / Beaver (Castor fiber) dam on river, Bamff Estate, Perthshire, Scotland, UK.

Alejandro Prieto / An image of a wild Jaguar (Panthera onca) is symbolically projected on to a section of the US-Mexico border wall. Jaguars have disappeared from the US in the last century, mostly due to habitat loss a...

David Hall / Caribbean Common Octopus (Octopus vulgaris), often active during the day, spread out, Dominica, Eastern Caribbean.

Jussi Murtosaari / Male Chequered blue butterfly (Scolitantides orion) resting on wildflower in habitat, Finland. June.

Konrad Wothe / Northern Fulmar (Fulmarus glacialis) flying near coastal cliffs, Hornstrandir Nature Reserve, Iceland

Tui De Roy / Great Frigatebird (Fregata minor) chick at coast, Genovesa Island, Galapagos Islands, Ecuador

David Fleetham / Stumpy-spined cuttlefish (Sepia bandensis) camouflaging its colour and shape to match the seaweed behind, Philippines, Pacific Ocean.

Edwin Giesbers / Wide angle of Siberian chipmunk (Eutamias sibiricus) looking into camera, on tree trunk, living wild. Near Tilburg, the Netherlands. March.

Edwin Giesbers / Siberian chipmunk (Eutamias sibiricus) eating in between tree roots, living wild. Near Tilburg, the Netherlands. March.

Edwin Giesbers / Siberian chipmunk (Eutamias sibiricus) eating in between tree roots, living wild. Near Tilburg, the Netherlands. March.

Bruce Thomson / Greater thornbird (Phacellodomus ruber) perching on thorny branch, Pocone, Brazil.

Bruce Thomson / Pair of Mareeba rock wallaby (Petrogale mareeba) sitting on granite boulders, male, left and female, right, Atherton Tablelands, Queensland, Australia.

Bruce Thomson / Monjon (Petrogale burbidgei) at night in rocky habitat, Prince Regent River, Western Australia.

Bruce Thomson / Christmas Island red crab (Gecarcoidea natalis) creeping around on the forest floor, Christmas Island, Australia.