Tom Marshall / Wrybill (Anarhynchus frontalis) Adult, Lake Ellesmere. Canterbury. New Zealand. September

Rick Tomlinson / "Alinghi" catamaran during trials off Valencia, Spain, for the 33rd America's Cup. February 2010.

Marie Read / Taughannock Falls, near Ithaca, New York, in autumn after a day of heavy rainfall. October 2010. At 215 feet, Taughannock Falls is 33 feet taller than Niagara Falls.

Georgette Douwma / A rescued battery hen. They often lack feathers when they come out of the battery barns. UK.

Georgette Douwma / Rescued battery hens with rooster. The chickens often lack feathers when they come out of the battery barns. UK.

Georgette Douwma / Blue-girdled angelfish (Pomacanthus navarchus) on the wreck "Kasi Maru", a Japanese merchant ship sunk in fifty feet of water off Munda in Ironbottom Sound during a World War II bombing raid July 1943...

Juan Carlos Munoz / Aerial view of the rivers and saltmarshes of the Bahia / Bay de Cadiz Natural Park, Andalucia, Spain, March 2008

Ross Hoddinott / Moorland view of Nun's Cross Farm, dry stone wall and gate, Dartmoor, Devon, UK. February 2009.

Ross Hoddinott / Close-up of Hazel inflorescence (Corylus avellana) in spring, with both male catkins and female flower visible, near Bradworthy, Devon, UK. March 09.

Ross Hoddinott / Bladder wrack (Fucus vesiculosus) seaweed, Sandymouth bay, Cornwall, UK. March

Ross Hoddinott / Hartland Quay, rugged north Devon coastline, nr Hartland, Devon, UK. March 2009.

Ross Hoddinott / Pussy willow / Sallow (Salix caprea) catkins, Cornwall, UK. April .

Ross Hoddinott / Snowdrops (Galanthus nivalis) flowering near church in spring, UK.

Juan Carlos Munoz / Galapagos giant tortoise {Geochelone elephantopus} cooling in water, Santa Cruz Island, Galapagos, January

Ross Hoddinott / Large red damselfly (Pyrrhosoma nymphula) emerging from nymphal case. Broxwater, Cornwall, UK. Sequence 2/3

Ross Hoddinott / Silhouetted trees and long blue shadows falling on fresh snow, near Bradworthy, north Devon, UK. February 2009.

Ross Hoddinott / Panoramic view of a hedge and field gate after snowfall, near Bradworthy, Devon, UK. February 2009.

Juan Carlos Munoz / Greater flamingo {Phoenicopterus ruber} feeding in coastal lagoon, Isabela Island, Galapagos, January

Juan Carlos Munoz / Blue footed booby {Sula nebouxii} diving, Galapagos, January

Juan Carlos Munoz / View from the caldera rim of the Chico Volcano, Sierra Negra, Isabela Island, Galapagos, January 2009

Juan Carlos Munoz / Galapagos giant tortoise {Geochelone elephantopus} head portrait, Santa Cruz Island, Galpagos, January

Juan Carlos Munoz / Close up of foot of a hiker on the caldera rim of Los Gemelos, Santa Cruz Island, Galapagos, January 2009. Model released.

Juan Carlos Munoz / Crab walking over beach leaving tracks in the wet sand, Floreana Island, Galapagos, January

Juan Carlos Munoz / Marine iguana {Amblyrhynchus cristatus} Plaza Island, Galapagos, January

Juan Carlos Munoz / Cork oak trees {Quercus suber} with bark removed, Alcornocales NP, Cadiz, Andalucia, Spain, January 2008

Edwin Giesbers / Two male Eider ducks (Somateria mollissima) Heligoland, Germany

Juan Carlos Munoz / Large oak tree {Quercus sp} with ferns growing on trunk, Alcornocales NP, Cadiz, Andalucia, Spain

Juan Carlos Munoz / Large oak tree {Quercus sp} with ferns growing on trunk, Alcornocales NP, Cadiz, Andalucia, Spain

Edwin Giesbers / Banded mongoose (Mungos mungo) looking over the back of another, Queen Elizabeth National Park, Uganda

Warwick Sloss / Polar bear {Ursus maritimus} sniffing at occupants of filming vehicle, Churchill, Manitoba, Canada. Filming BBC's 'Nature's Great Events' 2007

Warwick Sloss / Polar bear {Ursus maritimus} at sunset Churchill, Manitoba, Canada.

Andrew Parkinson / Young European rabbit (Oryctolagus cuniculus) sitting alert, in the last rays of evening light, Norfolk, UK, June

Andrew Parkinson / Young European rabbit (Oryctolagus cuniculus) sitting alert in the last rays of evening light, Norfolk, UK, June

Andrew Parkinson / Snow bunting (Plectrophenax nivalis) amongst snow covered rocks, Cairngorm Mountains, Scotland, UK, February

Andrew Parkinson / Sika deer (Cervus nippon) female grooming calf, Arne RSPB Reserve, Dorset, UK

Andrew Parkinson / Wood pigeon (Columba palambus) flock takes flight from a field of corn stubble, Derbyshire, UK, January

Andrew Parkinson / Bohemian waxwings (Bombycilla garrulus) perched on a TV aerial, Nottinghamshire, UK, January

Andrew Parkinson / Common starling (Sturnus vulgaris) flock flying towards their night time roost, Scottish Borders, Scotland, UK

Andrew Parkinson / Bohemian waxwings (Bombycilla garrulus) perched on a TV aerial, Nottinghamshire, UK, January

Andrew Parkinson / Razorbill (Alca torda) coming in to land on its cliff top nest site, Saltee Islands, Republic of Ireland, May

Andrew Parkinson / Male Common teal (Anas crecca) swimming towards the photographer, Norfolk, UK, January

Andrew Parkinson / Red kite (Milvus milvus) in flight, Gigrin Farm, Powys, Wales, February

Andrew Parkinson / Young European rabbit (Oryctolagus cuniculus) sitting in the last rays of evening light, Norfolk, UK, June

Andrew Parkinson / Scots pine (Pinus sylvestris) a mature tree covered in snow, Cairngorms National Park, Scotland, UK, February

Andrew Parkinson / European rabbit (Oryctolagus cuniculus) in the last rays of evening light, Norfolk, UK, June

Andrew Parkinson / Common starling (Sturnus vulgaris) flock moving to avoid predators near their night time roost site, Scottish Borders, Scotland, UK

Andrew Parkinson / Common teal (Anas crecca) profile of a male with his head feathers erect, Norfolk, UK, January

Andrew Parkinson / Canada goose (Branta canadensis) pair move together across a tranquil lake, Derbyshire, UK

Andrew Parkinson / Greylag goose (Anser anser) on the River Lea, Hackney Marshes, London, England

Andrew Parkinson / Mute swan (Cygnus olor) stretching its wings at dawn, Nottinghamshire, UK, December

Andrew Parkinson / Landscape showing a glacial valley in the Cairngorms National Park, Cairngorm Mountains, Scotland, UK, February

Andrew Parkinson / Great crested grebe (Podiceps cristatus) pair during their elaborate courtship dance in dawn mist, Derbyshire, UK, March

Andrew Parkinson / Male Pheasant (Phasianus colchicus) whirring its wings after crowing, Norfolk, UK, May

Andrew Parkinson / Male Pheasant (Phasianus colchicus) portrait during the breeding season, Derbyshire, UK, January

Andrew Parkinson / Mountain hare (Lepus timidus) in its white winter coat, Monadhliath Mountains, Scotland, UK, February

Andrew Parkinson / Great crested grebe (Podiceps cristatus) pair performing part of their elaborate courtship dance, Derbyshire, UK, February

Andrew Parkinson / Great crested grebe (Podiceps cristatus) pair during part of their elaborate courtship ritual, Derbyshire, UK, March

Andrew Parkinson / Mute swan (Cygnus olor) portrait of a cygnet, Derbyshire, UK

Andrew Parkinson / Canada goose (Branta canadensis) landing at sunset, Derbyshire, UK

Andrew Parkinson / Common buzzard (Buteo buteo) perched on rock in bright winter sunlight, Isle of Mull, Scotland, UK

Andrew Parkinson / Group of Greylag geese (Anser anser) flying in the half light before dawn, Snettisham RSPB reserve, Norfolk, UK, September

Andrew Parkinson / Great crested grebe (Podiceps cristatus) pair during part of their elaborate courtship ritual, Derbyshire, UK, March

Andrew Parkinson / Mute swan (Cygnus olor) rear view of pair engaged in a courtship dance, Derbyshire, UK, February

Andrew Parkinson / Canada goose (Branta canadensis) landing at sunset, Derbyshire, UK

Andrew Parkinson / Great crested grebe (Podiceps cristatus) pair during part of their elaborate courtship called the 'weed dance', Derbyshire, UK, March

Andrew Parkinson / Coots (Fulica atra) fighting in a territorial dispute, Nottinghamshire, UK

Andrew Parkinson / Mute swan (Cygnus olor) pair engaged in a courtship dance, Nottinghamshire, UK, February

Andrew Parkinson / Great crested grebe (Podiceps cristatus) pair during their elaborate courtship dance, Derbyshire, UK, March

Andrew Parkinson / Mute swan (Cygnus olor) pair engaged in a courtship dance, Nottinghamshire, UK, February

Andrew Parkinson / Arctic skua (Stercorarius parasiticus) landing on coastal cliffs in evening sunlight, Shetland Islands, Scotland, UK, July

Andrew Parkinson / Coot (Fulica atra) forming an almost perfect circle as it roosts at dawn, Derbyshire, UK, March

Andrew Parkinson / Mute swan (Cygnus olor) breeding pair of adults during part of their courtship ritual, Nottinghamshire, UK, February

Andrew Parkinson / Black guillemot (Cepphus grylle) with a fish in its beak, evening light, Shetland Islands, Scotland, UK, July

Andrew Parkinson / Mute swan (Cygnus olor) skidding along the surface of the water as it lands, Derbyshire, UK

Andrew Parkinson / Puffin (Fratercula arctica) peering over a grassy bank, Shetland Islands, Scotland, UK, July

Andrew Parkinson / Great crested grebe (Podiceps cristatus) stretching its wings and neck in dawn light, Derbyshire, UK, March

Andrew Parkinson / Coot (Fulica atra) carrying nest material, Derbyshire, UK, March

Andrew Parkinson / Canada goose (Branta canadensis) drying its wings after bathing, Derbyshire, UK

Andrew Parkinson / Coot (Fulica atra) bathing at dawn, Derbyshire, UK, March

Andrew Parkinson / Two Kittiwakes (Rissa tridactyla) greeting one another after one returns to the nest site, Farne Islands, UK

Andrew Parkinson / Mute swan (Cygnus olor) profile, Derbyshire, UK, March

Andrew Parkinson / European rabbit (Oryctolagus cuniculus) alert, ears poke out above the top of a grass bank, Norfolk, UK, June

Andrew Parkinson / Mute swan (Cygnus olor) territorial adult, aggressive display posture, Derbyshire, UK, March

Andrew Parkinson / Great crested grebe (Podiceps cristatus) pair during their elaborate courtship dance, Derbyshire, UK, March

Tony Heald / African elephant (Loxodonta africana) in the rain, Etosha National Park, Namibia, January

Tony Heald / Male Eland (Taurotragus oryx) jumping, Etosha National Park, Namibia, January

Tony Heald / Male Eland (Taurotragus oryx) jumping, Etosha National Park, Namibia, January

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

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

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

Tony Heald / Kori bustard (Ardeotis kori) displaying, Etosha National Park, Namibia, January

Edwin Giesbers / Northern gannet (Morus bassanus) pair, courtship, Heligoland, Germany

Juan Carlos Munoz / European fire salamander {Salamandra salamandra} Alcornocales NP, Cadiz, Andalucia, Spain

Edwin Giesbers / Northern gannet (Morus bassanus) sky pointing, Heligoland, Germany

Edwin Giesbers / European polecat (Mustela putorius) hunting rabbit which is jumping to escape, Veluwezoom National Park, Netherlands

Juan Carlos Munoz / Sunrise over Sierra de Grazalema NP, Cadiz, Andalucia, Spain, February 2008