Mark Taylor / Cheeky ginger kitten, Ollie, 10 weeks, reaching up and batting the ear of Boxer puppy

Steven Kazlowski / Two curious young Polar bears (Ursus maritimus), Barter Island, off the 1002 area of the Arctic National Wildlife Refuge, North Slope of the Brooks Range, Alaska, October 2011

Bence Mate / Leaf cutter ant (Atta sp) female worker carrying leaf to nest, with a smaller 'minor' ant riding. The minor's job is to protect her sister from parasitic flies. Costa Rica, December. Highly Commended,...

Ole Jorgen Liodden / Arctic tern (Sterna paradisaea) attacking an Arctic Fox (Vulpes / Alopex lagopus) protecting its nest site, Spitsbergen, Svalbard, Norway. Highly commended, MAMMALS, GDT 2011 competition

Richard Du Toit / Burchell's Zebra (Equus burchellii) males fighting, Rietvlei Nature Reserve, Gauteng, South Africa

Richard Du Toit / Burchell's Zebra (Equus burchellii) males fighting, Rietvlei Nature Reserve, Gauteng, South Africa

Jeff Vanuga / Gentoo Penguin (Pygoscelis papua) mating. Cuverville Island, Antarctica.

Kevin Schafer / Galapagos Marine Iguana (Amblyrhynchus cristatus) with Lava Lizard (Trpoidurus) on head. Fernandina island, Galapagos.

Mark Hamblin / 2020VISION / Reindeer (Rangifer tarandus) on upland plateau, Cairngorms National Park, Scotland, UK, August.

Mark Hamblin / 2020VISION / Reindeer (Rangifer tarandus) on upland plateau, Cairngorms National Park, Scotland, UK, August.

Paul Hobson / Arctic tern (Sterna paradisaea) two fighting in the air, Scotland, UK July

Fiona Rogers / Celebes / Black crested macaque (Macaca nigra) two individuals greeting, Tangkoko National Park, Sulawesi, Indonesia.

Anup Shah / Celebes / Black crested macaque (Macaca nigra) two juveniles approaching with curiosity, one grimacing Tangkoko National Park, Sulawesi, Indonesia.

Denis-Huot / Masai Giraffe (Giraffa camelopardalis tippelskirchi), males fighting. Masai-Mara game reserve, Kenya.

Denis-Huot / Masai Giraffe (Giraffa camelopardalis tippelskirchi) male and female (back). Masai-Mara Game Reserve, Kenya.

Denis-Huot / Male buffalo (Syncerus caffer) chasing Masai Giraffe (Giraffa cameleopardalis tippelskirchi) Masai-Mara Game Reserve, Kenya.

Denis-Huot / African Elephant (Loxodonta africana) baby elephant its mother's trunk Amboseli National Park, Kenya.

Winfried Wisniewski / Masai Giraffe (Giraffa tippelskirchi) males fighting, Masai Mara, Kenya

Linda Pitkin / 2020VISION / Fisheries assistant Stephanie Kershaw and volunteer John Dumont from the Eden Rivers Trust searching for White clawed crayfish (Austropotamobius pallipes) as part of a capture and release conservation...

Linda Pitkin / 2020VISION / Fisheries assistant Stephanie Kershaw and volunteer John Dumont at the Eden Rivers Trust electrofishing for juvenile Atlantic salmon (Salmo salar) and Brown trout (Salmo trutta) as part of a capture a...

Luke Massey / 2020VISION / Two Turtle doves (Streptopelia turtur) perched on a rusting iron rail in a rain shower, Essex, England, UK, June.

Ben Hall / 2020VISION / Common starling (Sturnus vulgaris) on bird feeder with man in background watching through house window with binoculars, Poynton, Cheshire, England, UK, May. Property released.

Michel Roggo / Sockeye / Red Salmon (Oncorhynchus nerka) on spawning migration. Adams River, British Columbia, Canada, October.

Anup Shah / Western chimpanzee (Pan troglodytes verus) young male 'Jeje' aged 13 years being groomed by young male 'Peley' aged 12 years, Bossou Forest, Mont Nimba, Guinea. January 2011.

Anup Shah / Topi (Damaliscus lunatus jimela) two males sparring, with another approaching, Masai Mara National Reserve, Kenya. March

Anup Shah / African lion (Panthera leo) lioness resting with her two playful cubs aged 1-2 months, Masai Mara National Reserve, Kenya. March

Doc White / Blue Whales (Balaenoptera musculus) throat inflated, filter feeding at sea surface. California, USA. Sequence 1 of 2.

Bertie Gregory / 2020VISION / Adult male Peregrine falcon (Falco peregrinus) food passing a Feral pigeon (Columba livia) to his offspring, Bristol, England, UK, June.

Terry Whittaker / 2020VISION / Two Water voles (Arvicola amphibius) eating, Kent, England, UK, July

David Pattyn / Great Crested Grebe (Podiceps cristatus) with two young chicks on her back. La Dombes lake area, France, July.

David Pattyn / Siskins (Carduelis spinus) fighting over food. Oisterwijk, The Netherlands, March.

Alex Mustard / Two Whale sharks (Rhincodon typus) feeding on fish eggs at the surface, Isla Mujeres, Quintana Roo, Yucatan Peninsula, Mexico, Caribbean Sea.

Sumio Harada / Black Bear (Ursus americanus) mother and cub near tree den, Glacier National Park, Montana

Juan Carlos Munoz / Bearded Vultures (Gypaetus barbatus) juvenile (left) and adult fighting in flight. Simien National Park, Ethiopia, Africa.

Juan Carlos Munoz / Bearded vulture (Gypaetus barbatus) chasing Thick-billed Raven (Corvus crassirostris) in flight. Simien National Park, Ethiopia, Africa.

Markus Varesvuo / Ruff (Philomachus pugnax) two males displaying in territorial dispute, Liminka Finland June

Markus Varesvuo / Common Raven (Corvus corax) two in flight during snow storm, Kuusamo, Finland April

Markus Varesvuo / Blue Tits (Paris caereleus) two feeding on red berries, Uto Finland October

Markus Varesvuo / Two Sparrowhawks (Accipiter nisus) immature male and female in flight, male on left, Falsterbo, Sweden. September.

Kevin Schafer / Galapagos Sea Lion (Zalophus wollebaeki) pups playing, Espanola Island, Galapagos Islands, Ecuador

Neil Aldridge / African Lion (Panthera leo) cub reaches for a moment of intimacy with its father, Northern Tuli Game Reserve, Botswana

Hiroya Minakuchi / Red Kangaroo (Macropus rufus) mother grazing with joey in pouch, Australia

XI ZHINONG / Grey wolf (Canis lupus) chasing a wounded tibetan wild ass (Equus kiang) Kekexili, Qinghai, China, December.

Mark Carwardine / Whale shark (Rhincodon typus) aerial view of juvenile with two people swimming alongside, La Paz Bay, Sea of Cortez (Gulf of California), Baja California, Mexico, March 2009

Mark Carwardine / Whale shark (Rhincodon typus) aerial view of juvenile with two people swimming alongside, La Paz Bay, Sea of Cortez (Gulf of California), Baja California, Mexico, March 2009

Mark Carwardine / Two Humpback whales (Megaptera novaeangliae) bubble-net feeding very close to shore, Great Bear Rainforest, British Columbia, Canada, Endangered or threatened species (Vulnerable)

Mark Carwardine / Two Sandhill cranes (Grus canadensis) flying, Bosque del Apache National Wildlife Refuge, New Mexico, USA

Mark Carwardine / Amazon river dolphin, pink river dolphin or boto (Inia geoffrensis) Rio Negro, Brazil (Amazon) - two wild animals fighting over fish Threatened species (IUCN Red List)

Mark Carwardine / Antarctic minke whales {Balaenoptera bonaerensis} Antarctica

Mark Carwardine / Melon headed whale + calf bow riding {Peponocephala electra} Maldives

Andrew Parkinson / Puffin (Fratercula arctica) in flight with two fish in beak. Farne Islands, UK, July.

Andrew Parkinson / Hanuman / Northern Plains Grey Langur (Presbytis entellus) two youngsters chase each other up a sloping tree. Bandhavgarh National Park, India.

Floris van Breugel / Two Bull Northern Elephant Seals (Mirounga angustirostris) face off before fighting in the middle of the extensive Piedras Blancas rookery with over 150 seals just in this photo, mostly pregnant or nu...

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) six week old cub on sleeping mother at den, Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) six week old cub on mother paw at den, Bandhavgarh National Park, India

Suzi Eszterhas / Bengal Tiger (Panthera tigris tigris) five week old cub resting on sleeping mother at den, Bandhavgarh National Park, India

Bert Willaert / Sparrowhawk (Accipiter nisus) being caught by a falconer using a Red-backed shrike (Lanius collurio) as bait, Georgia, September 2011.

Christophe Courteau / Two African Buffalo {Sincerus caffer} bulls sparring, Okavango Delta, Botswana.

Christophe Courteau / West African giraffes {Giraffa camelopardis peralta} in millet plantation Sahel, Niger.

Christophe Courteau / Pair of West African giraffes {Giraffe camelopardis peralta}. Male on right, female on left.

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

Steven Kazlowski / Polar bear (Ursus maritimus) sow and cub sliding on their backs over the pack ice, much like ice skating, 1002 coastal plain of the Arctic National Wildlife Refuge, Alaska, USA

Steven Kazlowski / Grizzly bear (Ursus arctos horribilis) young rare blonde (white) bear plays with a young dark coloured bear along the coast of Katmai National Park, Alaskan peninsula, USA

Steven Kazlowski / Caribou (Rangifer tarandus) pair walking at sunset in the arctic, North Slope of Brooks range, Alaska, USA

Steven David Miller / Whistling kites (Haliastur sphenurus) two in flight, one with prey in talons, over Corroboree Billabong, Mary River, Northern Territory, Australia

Loic Poidevin / Salmon landing on head of Grizzly bear (Ursus arctos horribilis) as it is leaping up rapids, Katmai National Park, Alaska, USA

Ernie Janes / Fallow deer (Cervus dama) two female does bathing in lake, Norfolk, UK July

Jeff Rotman / Common Thresher Shark (Alopias vulpinus) caught on gill net being hauled up onto boat, Huatabampo, Mexico, Sea of Cortez, Pacific Ocean. Model released. Model released.

Andy Trowbridge / Gibson's Albatross / Toroa (Diomedea antipodensis gibsoni) or Kaikoura Coast, Kaikoura, South Island, New Zealand. January.

Paul D Stewart / Two species of weevil showing the size disparity even in single families of insect. The larger is the Bamboo weevil of East Asia Cyrtotrachelus dux, the smaller is identified (perhaps misidentified) o...

Eric Medard / Little owl (Athene noctua) young owlets stretching wings in the rain, France, July

Mark Taylor / Tabby kittens, Stanley and Fosset, 12 weeks, walking together in unison.

Mark Taylor / Tabby kittens, Stanley and Fosset, 12 weeks, lounging together.

Mark Taylor / Tabby kitten, Fosset, 10 weeks, with Great Dane puppy, Tia, 14 weeks.

Mark Taylor / Cute tabby kittens, Stanley and Fosset, 9 weeks.

Mark Taylor / Two cute tabby kittens, Stanley and Fosset, 7 weeks, sleeping in a hammock.

Mark Taylor / Black, and Black and white tuxedo male kittens, Tuxie and Buxie, 3 months lying together, wearing collars and bells.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years feeding on fruit with his son 'Tembo' aged 4 years sitting in the background, Bai Hokou, Dzanga Sangh...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years feeding on seed pods, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years and juvenile male 'Mobangi' aged 5 years drinking from a dirty pool of water in Bai Hokou, Dzanga Sangha Specia...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years standing with sub-adult male 'Kunga' aged 13 years in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Cent...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years and juvenile male 'Mobangi' aged 5 years approaching with curiosity, Bai Hokou, Dzanga Sangha Special Dense For...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years standing in a bai watched by son 'Tembo' aged 4 years, Bai Hokou, Dzanga Sangha Special Dense Forest...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile males 'Mobangi' aged 5 years and 'Tembo' aged 4 years sitting together in the forest, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve,...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years resting on a tree buttress with younger gorilla nearby, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Ce...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years and juvenile male 'Mobangi' aged 5 years drinking from a dirty pool of water in Bai Hokou, Dzanga Sangha Specia...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult male 'Kunga' aged 13 years playing with juvenile male 'Tembo' aged 4 years in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult male 'Kunga' aged 13 years playing with juvenile male 'Tembo' aged 4 years in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years sitting portrait, with other gorilla behind, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, C...

Fiona Rogers / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years standing with sub-adult male 'Kunga' aged 13 years in Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Cent...

Nick Upton / 2020VISION / Flock of young Common / Eurasian Cranes (Grus grus) walking and flying after two surrogate parents dressed in grey holding model adult crane heads. The Great Crane Project, Somerset, UK, September 201...

David Pattyn / Red foxes (Vulpes vulpes) two fighting, probably over territory, The Netherlands, August

David Pattyn / Alpine ibex (Capra ibex) adult male chasing two young males away, Gran Paradiso National Park, Italy, July

Juan Carlos Munoz / Great Egrets (Ardea alba) territorial fight above nest colony, Everglades National Park, Florida, USA, February.

Juan Carlos Munoz / Great Egrets (Ardea alba) territorial dispute above nest colony, Everglades National Park, Florida, USA, February.

Andy Sands / Small emperor moth (Saturnia pavonia) male below female both displaying eyespots on Gorse, Captive, UK, April