Juan Carlos Munoz / Brown bear (Ursus arctos) silhouetted at dawn, Karelia. Finland, May.

Chris & Monique Fallows / Southern right whale (Eubalaena australis) close up feeding on plankton at surface, False Bay, Cape Town, South Africa; with barnacles on head

Chris & Monique Fallows / Sooty Albatros (Phoebetria fusca) at sea off South Georgia Island, Antarctica

Chris & Monique Fallows / Orca (Orcinus orca) near at surface whilst hunting dolphin, False Bay, South Africa.

Sandesh Kadur / Clouded leopard (Neofelis nebulosa), captive, part of a rehabilitation project, Manas National Park, Kokrajhar, Assam, India.

Andy Rouse / Verreaux Sifaka (Propithecus verreauxi) jumping across ground with baby on its back, Madagascar

Nick Upton / European robin (Erithacus rubecula) standing upright in a territorial threat display in a meadow among patchy snow, Wiltshire, UK, January.

Alex Mustard / A portrait of a male Ballan wrasse (Labrus bergylta), showing his bright mating colours. Plymouth, Devon, England, Great Britain. Wreck of the Glen Strathallan, Plymouth Sound, English Channel. Highly...

Claudio Contreras / Keel billed toucan (Ramphastos sulfuratus) calling, captive.

Christophe Courteau / West African giraffe face {Giraffa camelopardis peralta}. Sahel, Niger.

Christophe Courteau / Red lechwe pair running & jumping in swamp {Kobus leche}. Khwai river, Moremi GR, Botswana

Daniel Heuclin / Brown-banded Southern Water Snake (Nerodia fasciata) head in profile as it tastes the air with tongue. Controlled conditions. Lake Fausse-Pointe State Park, Louisiana, USA, November.

Claudio Contreras / Laysan albatross (Phoebastria immutabilis) head portrait calling mate, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March

Claudio Contreras / Laysan albatross (Phoebastria immutabilis) head portrait calling mate, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, March

Steven Kazlowski / Polar bear (Ursus maritimus) profile portrait of juvenile, Bernard Spit, Arctic National Wildlife Refuge, Alaska

Aflo / ic-07002 Horse galloping {Equus caballus}

Jose B. Ruiz / Marsh frog (Rana ridibunda perezii) reflected at water surface, Spain

Juan Manuel Borrero / Leaf frog (Phyllomedusa bicolor) climbing up branch, Tambopata NP, Peru

Philippe Clement / Young European rabbit {Oryctolagus cuniculus} head profile among flowers, Flanders, Belgium.

Staffan Widstrand / Jaguar, juvenile male head profile {Panthera onca} captive Pantanal, Brazil

Pete Oxford / Piranha portrait {Serrasalmidae} captive Amazonia, Ecuador

Anup Shah / Common zebras running {Equus quagga} Masai Mara, Kenya

Doug Perrine / Atlantic spotted dolphin bubbles coming from blowhole whilst it whistles {Stenella (Non-ex).

Doug Perrine / Atlantic spotted dolphins underwater {Stenella frontalis} Bahamas, Caribbean Sea (Non-ex).

Doug Perrine / Atlantic spotted dolphins underwater {Stenella frontalis} Bahamas, Caribbean Sea (Non-ex).

Doug Perrine / Bottlenose dolphin face portrait {Tursiops truncatus} Caribbean - Spot a lone (Non-ex).

Karl Ammann / Olive baboon mother with young {Papio anubis} Samburu Reserve, Kenya

Karl Ammann / Ground hornbill {Bucorvus leadbeateri} with frog prey in beak, Kenya

David Tipling / Tufted duck male on water, England UK

Tony Heald / Two African buffalo calves facing one another {Syncerus caffer} Kruger NP, South Africa

Niall Benvie / Greylag goose on water {Anser anser} Linlithgow, Scotland, UK

Rod Williams / Male Chinese water deer {Hydropotes inermis} native to China

Andrew Cooper / Sika deer (Cervus nippon). Devon, England, UK, Europe

TJ Rich / Male Roe deer {Capreolus capreolus} profile portrait England, UK, Europe

Jose Schell / Bull moose (Alces alces) feeding in lake. Gaspe Park, Canada

Ingo Arndt / Indian elephant feeding in swamp {Elephas maximus} Sri Lank

Francois Savigny / Spectacled / Jacare caiman {Caiman crocodilus} Llanos, Venezuela Hato El Frio

Ingo Arndt / Alpine ibex males {Capra ibex ibex} Switzerland

Francois Savigny / Oryx (Oryx gazella) running. Kalahari Gemsbok NP, South Africa

Gerrit Vyn / Laysan albatross (Phoebastria immutabilis) male female pair profiles, Oahu, Hawaii, January

Nick Upton / Adult Herring gull (Larus argentatus) standing on one leg on rooftop, Looe, Cornwall, UK, June. Editorial use only.

Nick Upton / Adult Herring gull (Larus argentatus) searching for scraps in fish boxes, Looe, Cornwall, UK, June.

Richard Robinson / Abundance survey of the Critically Endangered Maui's dolphin (Cephalorhynchus hectori maui) conducted by the New Zealand Department of Conservation. Marine ranger Martin Stanley takes photographs of t...

Richard Robinson / Abundance survey of the Critically Endangered Maui's dolphin (Cephalorhynchus hectori maui) conducted by the New Zealand Department of Conservation. Marc Oremus takes skin biopsies using a dart gun to...

Richard Robinson / Abundance survey of the Critically Endangered Maui's dolphin (Cephalorhynchus hectori maui) conducted by the New Zealand Department of Conservation. Marc Oremus takes skin biopsies using a dart gun to...

Richard Robinson / Abundance survey of the Critically Endangered Maui's dolphin (Cephalorhynchus hectori maui) conducted by the New Zealand Department of Conservation. Marc Oremus takes skin biopsies using a dart gun to...

Peter Cairns / Male Siskin (Carduelis spinus) perched on lichen-covered branch, Cairngorms National Park, Scotland, May.

Peter Cairns / Female Siskin (Carduelis spinus) warning off intruder, Cairngorms National Park, Scotland, May.

Peter Cairns / Trumpeter Swan (Cygnus buccinator) stood on frozen river, Grand Teton National Park, Wyoming, USA, February.

Peter Cairns / Mallard (Anas platyrhynchos) close up of female, Scotland, July.

Jean E. Roche / Tanker waiting to enter Marseille harbour, France, November 2012.

Jean E. Roche / Tanker waiting to enter Marseille harbour, France, November 2012.

Jean E. Roche / Mediterranean tree frogs (Hyla meridionalis) in amplexus, Camargue, France, June.

Jean E. Roche / Andalusian horses in a horse feastival, Camargue, France, June 2013.

Ernie Janes / Yellowhammer (Emberiza citinella) on hawthorn blossom, Norfolk, England, UK, June.

Ernie Janes / Sailboat at Blakeney Point, Norfolk, August 2013.

Ernie Janes / Grey Heron (Ardea cinerea) portrait, Regents Park, London, June.

Ernie Janes / Avocet (Recurvirostra avocetta) on bank, Norfolk, June.

David Pike / Harvest mouse (Micromys minutus) climbing plant stalk, Devon Wildlife Photography Centre, captive, May.

David Pike / Little owl (Athene noctua) on tree trunk, West Country Wildlife Photography Centre, captive, June.

MYN / Denis Palanque / Painted Frog (Discoglossus pictus) invasive species, France. Meetyourneighbours.net project.

Eric Medard / Hedgehog (Erinaceus europaeus) at night, taken with infra red remote camera trap, Mayenne, Pays de Loire, France, April.

Eric Medard / Brown rat (Rattus norvegicus) walking along branch in garden at night, taken with infra red remote camera trap, Mayenne, Pays de Loire, France. June.

Eric Medard / Coypu (Myocastor coypus) at night taken with infra red remote camera trap, France, January.

Eric Medard / Coypu (Myocastor coypus) at night, taken with infra red remote camera trap, France, January.

Eric Medard / Coypu (Myocastor coypus) at night, taken with infra red remote camera trap,, France, January.

Eric Medard / Hedgehog (Erinaceus europaeus) at night, taken with infra red remote camera trap, Mayenne, Pays de Loire, France, April.

Eric Medard / Roe deer (Capreolus capreolus) female, taken at night using infra-red, Mayenne, Pays de la Loire, France, September.

Eric Medard / Dormouse (Eliomys quercinus) taken at night with infra-red remote camera trap, France, July.

Eric Medard / Dormouse (Eliomys quercinus) running down branch, taken at night with infra red remote camera trap, France, July.

Eric Medard / Mallard (Anas platyrhynchos) fallen tree trunk in water, taken at night with infra-red remote camera trap, Mayenne, Pays de Loire, France, July.

Eric Medard / Pine marten (Martes martes) with mouse prey in garden, taken at night with infra red remote camera trap, Mayenne, Pays de Loire, France, July.

Eric Medard / Wild Boar (Sus scrofa) taken at night with infra red remote camera trap, Mayenne, Pays de Loire, France.

Eric Baccega / Topi (Damaliscus lunatus) calf, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Female Impala (Aepyceros melampus) with calf, Samburu National Reserve, Kenya, Africa.

Eric Baccega / Topi (Damaliscus lunatus) female and calf, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Spotted hyena (Crocuta crocuta), Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Leopard walking in the bush (Panthera pardus), Samburu National Reserve, Kenya, Africa.

Eric Baccega / Grant's zebra (Equus quagga boehmi), Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Topi (Damaliscus dorcas) female and calf, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Leopard (Panthera pardus) walking, Samburu National Reserve, Kenya, Africa.

Eric Baccega / Lion (Panthera leo), Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Topi (Damaliscus lunatus) female and calf, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Grevy's zebra walking (Equus grevyi), Samburu National Reserve, Kenya, Africa. Endangered species.

Eric Baccega / Female Impala (Aepyceros melampus) Nakuru National Park, Kenya, Africa.

Eric Baccega / Male Impala (Aepyceros melampus) drinking, Samburu National Reserve, Kenya, Africa.

Eric Baccega / Head portrait of Reticulated giraffe (Giraffa camelopardalis reticulata) Samburu National Reserve, Kenya, Africa.

Eric Baccega / Topi (Damaliscus lunatus) female and calf, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Young impala (Aepyceros melampus), Samburu National Park, Kenya, Africa.

Eric Baccega / Lion (Panthera leo), Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Topi (Damaliscus lunatus) calves, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Leopard tortoise (Geochelone pardalis) Bogoria Lake, Kenya, Africa.

Eric Baccega / African fish eagle (Haliaeetus vocifer) feeding on fish in tree Baringo lake, Kenya, Africa.

Eric Baccega / Black winged lapwing (Vanellus melanopterus) juvenile, Masai Mara National Reserve, Kenya, Africa.

Eric Baccega / Black-headed heron (Ardea melanocephala) Mara National Reserve, Kenya, Africa.

Eric Baccega / African elephant (Loxodonta africana) Masai Mara National Reserve, Kenya, Africa.