Anup Shah / Celebes / Black crested macaque (Macaca nigra) 'Alpha' baby female aged about 1 month hanging upside down in a tree, Tangkoko National Park, Sulawesi, Indonesia.

David Tipling / Grey Squirrel (Sciurus carolinensis) climbing on fence, St James Park, London, UK, October

Anup Shah / Western chimpanzee (Pan troglodytes verus) female 'Fana' aged 54 years playing with her infant grandson 'Flanle' aged 3 years, Bossou Forest, Mont Nimba, Guinea. January 2011.

Anup Shah / Western chimpanzee (Pan troglodytes verus) infant male 'Flanle' aged 3 years wearing on his head a 'head support' used by villagers to carry heavy items made from palm leaves being chased by his mot...

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

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Mopambi' sitting with her playful infant 'Sopo' aged 18 months, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republi...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Mopambi' sitting with her playful infant 'Sopo' aged 18 months, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republi...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) female 'Mopambi' sitting with her playful infant 'Sopo' aged 18 months, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republi...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years swinging from a plant stem, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. Dece...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) infant 'Sopo' aged 18 months reaching out for a hanging plant stem while playing in a tree, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Cen...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) infant 'Sopo' aged 18 months reaching out for a hanging plant stem while playing in a tree, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Cen...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) infant 'Sopo' aged 18 months playing in a tree, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2011.

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years playing with sub-adult female 'Mosoko' aged 8 years with juvenile male 'Tembo' aged 4 years watching in the backg...

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

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

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) juvenile male 'Mobangi' aged 5 years swinging from a branch, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years playing with juvenile male 'Mobangi' aged 5 years, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Centr...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult male 'Kunga' aged 13 years playing with juvenile male 'Mobangi' aged 5 years, 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) 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...

Steven Kazlowski / Moose (Alces alces) newborn calves playing in spring vegetation. Tony Knowles Coastal Trail, Anchorage, south-central Alaska.

Anup Shah / Lioness (Panthera leo) playing with young cub aged 3-6 months, Masai Mara National Reserve, Kenya, August

Anup Shah / Lioness (Panthera leo) playing with a cub aged 9-12 months, Masai Mara National Reserve, Kenya, August

Anup Shah / African lion (Panthera leo) young playing in water, Masai Mara National Reserve, Kenya, September

Anup Shah / Lioness (Panthera leo) playing with a cub aged 9-12 months, Masai Mara National Reserve, Kenya, August

Alex Mustard / 2020VISION / Young Grey seal (Halichoerus grypus) playing with snorkeller, Farne Islands, Northumberland, England, UK, July. Model released.

Alex Mustard / 2020VISION / Grey seal (Halichoerus grypus) swimming amongst kelp and playing, Farne Islands, Northumberland, England, UK, July.

Paul Williams / Giant otter (Pteronura brasiliensis) adult playing with plastic bottle, Pantanal, Pocone, Brazil

Paul Williams / Tourists watching two wild Jaguar cubs fight on riverbank whilst third looks on from above (Panthera onca) from boat on river, Pantanal, Pocone, Brazil. No release available.

Danny Green / 2020VISION / European river otters (Lutra lutra) play fighting amongst seaweed, Isle of Mull, Inner Hebrides, Scotland, UK, December

Roland Seitre / Irrawaddy Dolphins (Orcaella brevirostris) jumping from water. Captive, Thailand.

Roland Seitre / Irrawaddy Dolphin (Orcaella brevirostris) spitting water. Captive, Thailand.

Brent Stephenson / Dusky dolphin (Lagenorhynchus obscurus) somersaults from the water, Kaikoura, Canterbury, New Zealand. February.

Roland Seitre / Spanish / Iberian Lynx (Lynx pardina) cub playing with its mother; part of a breeding and reintroduction program. Captive: critically endangered. Andalusia, Spain, June 2006.

Fabrice Cahez / Red fox (Vulpes vulpes) cubs playing in grass, Vosges, France, April

Carol Walker / Mustang / wild horses, second year cremello colt Claro play fighting with bay, McCullough Peak herd, Wyoming, USA, July 2009

Carol Walker / Mustang / wild horses, two yearling cremello colts Claro and Cremesso playing with a bay, McCullough Peak herd, Wyoming, USA, June 2008

Nick Turner / Children playing on Durdle Door Beach, Dorset, UK, May 2009.

Edwin Giesbers / Two Red fox (Vulpes vulpes) cubs, four months, play fighting, The Netherlands, June

Fabrice Cahez / Red fox (Vulpes vulpes) hunting vole in grass, tossing vole into the air, Vosges, France, June

Mary McDonald / Hanuman Langur / Northern Plains Grey Langur (Semnopithecus entellus) baby playing with a stick by its mother. Kanha National Park, Madhya Pradesh, India.

Petra Wegner / British Shorthair Cat, kitten, cream, 4 months, with toy.

Anup Shah / Caracal (Caracal caracal) two six month kittens play fighting, Masai Mara National Reserve, Kenya, August

Anup Shah / Caracal (Caracal caracal) two six month kittens play fighting, Masai Mara National Reserve, Kenya, August

David Tipling / 2020VISION / Young child playing on edge of woodland, silhouetted against the sky, Norfolk, January 2011 Model released. Did you know? Being close to nature is important for our wellbeing - 80% of the happiest peo...

David Tipling / 2020VISION / Young child playing on edge of woodland, silhouetted against the sky, Norfolk, January 2011 Model released

David Tipling / 2020VISION / Young child playing on edge of woodland, silhouetted against the sky, Norfolk, January 2011 Model released

David Tipling / 2020VISION / Young child playing on edge of woodland, silhouetted against the sky, Norfolk, January 2011 Model released

David Tipling / 2020VISION / Young child playing on edge of woodland, silhouetted against the sky, Norfolk, January 2011 Model released

Konrad Wothe / Orang-Utan (Pongo pygmaeus) lowering itself from a branch head-first into water. Gunung Leuser National Park, Sumatra.

Nick Garbutt / Male African Lion (Panthera leo) playing with 4 month cub. Big Marsh, near Ndutu, Nogorongoro Conservation Area, Serengeti National Park, Tanzania.

Mark Hamblin / 2020VISION / Boy (aged 17) jumping across upland stream, Cairngorms National Park, Highlands, Scotland, UK, August, Model released. 2020VISION Exhibition. 2020VISION Book Plate. Did you know? More than a million p...

Mark Hamblin / 2020VISION / Boy (aged 17) jumping across upland stream, Cairngorms National Park, Highlands, Scotland, UK, August, Model released

Mark Hamblin / 2020VISION / Boy (aged 17) jumping across upland stream, Cairngorms National Park, Highlands, Scotland, UK, August, Model released

Anup Shah / Young Southern plains grey / Hanuman langurs {Semnopithecus dussumieri} playing, jumping up for leaves, Ranthambore National Park, Rajasthan, India NOT FOR STOCK SALE, PLEASE CHECK WITH TIM A BEFORE...

Andrew Parkinson / 2020VISION / Marsh harrier (Circus aeruginosus) three sub-adult siblings squabbling in flight in the last rays of evening sunlight, Norfolk, UK, August

Anup Shah / Black backed jackals (Canis mesomelas) one pup grooming another, Masai Mara National Reserve, Kenya

Anup Shah / African Lioness (Panthera leo) walking along with playful cubs aged 12-18 months leaping on her back, Masai Mara National Reserve, Kenya,

Klaus Echle / Two Otters (Lutra lutra) playing in snow. Black Forest, Germany, January.

Andy Rouse / Man playing in deep snow with dogs (two German shepherds and a spaniel) on closed road on Caerphilly Mountain, Caerphilly, South Wales, UK, December 2010, Model released

Anup Shah / Olive baboon (Papio cynocephalus anubis) baby aged 3-6 months held in air by adult, Masai Mara National Reserve, Kenya, February

Anup Shah / Olive baboon baby (Papio cynocephalus anubis) 3-6 months tugging at mother, Masai Mara National Reserve, Kenya, March

Anup Shah / Adolescent male Lions (Panthera leo) play fighting, Masai Mara National Reserve, Kenya, March

Anup Shah / African Elephant (Loxodonta africana) juveniles play fighting, Masai Mara National Reserve, Kenya, February

Anup Shah / Playful Lion cub with lioness (Panthera leo), Masai Mara National Reserve, Kenya, October

Paul Hobson / Brown bear (Ursus arctos) adult female with two cubs playing, Finland, June

Paul Hobson / Brown bear (Ursus arctos) two fighting, Finland, June

Kristel Richard / Konik horses (Equus caballus) - Two wild Konik young colts running one after the other, Millingerwaard nature reserve, Netherlands, April

Anup Shah / Bonobo (Pan paniscus) adolescent male throwing water over an adult male, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Anup Shah / Bonobo (Pan paniscus) female baby aged 3 months playing with her mother, Lola Ya Bonobo Sanctuary, Democratic Republic of Congo. October.

Fabrice Cahez / Young Red Foxcubs (Vulpes vulpes) playing on grass. Vosges, France, May.

Ernie Janes / Yellow Labrador with ball in its mouth against blue sky.

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) two breaching in evening light, Moray Firth, Inverness-shire, Scotland, UK, August, sequence 1/2. 2020VISION Book Plate.

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) two breaching in evening light, Moray Firth, Inverness-shire, Scotland, UK, August, sequence 2/2. Photographer quote: 'A day of overcast cloud cleared in the la...

John MacPherson / 2020VISION / Bottlenose dolphin (Tursiops truncatus) breaching in evening light, Moray Firth, Inverness-shire, Scotland, UK, August, sequence 1/7

Ann & Steve Toon / Baby African elephants (Loxodonta africana) of various ages playing together, Addo national park, Eastern Cape, South Africa, January. Did you know? Elephants can tell the difference between different...

Eric Baccega / Polar Bear (Ursus maritimus) mother resting while her 3-month cubs play. Wapusk National Park, Manitoba, Canada, March.

Martin Dohrn / Group of hyena (Crocuta crocuta) playing in deep rain puddle at night. Topi Plain, Masai Mara, Kenya. Image taken using "starlight camera" with no artificial light, on location for National Geographi...

Mark Taylor / Playful Border Collie puppies, 6 weeks.

Terry Whittaker / 2020VISION / Pine marten (Martes martes) two 4-5 month kits running along branch of tree in caledonian forest, The Black Isle, Highlands, Scotland, UK, July. Photographer quote: 'Watching a family of young pine ma...

Andy Rouse / Polar Bear (Ursus maritimus) mother and two cubs playing around iceberg. Svalbard, Norway, Europe, February.

Jane Burton / Two Rough coated Jack Russell Terrier puppies playing with boot lace

Mark Taylor / Birman-cross kitten playfully rolling.

Florian Möllers / Golden snub-nosed monkey (Rhinopithecus roxellana qinlingensis) infants playing in tree, Zhouzi Nature Reserve, Qinling mountains, Shaanxi, China. April 2006

Andy Rouse / Two European Rabbit (Oryctolagus cuniculus) young playing, leaping in air. UK, August.

Sharon Heald / African lion [Panthera leo] juvenile males playing, Etosha National Park, Namibia, August

Tony Heald / African lion (Panthera leo) juvenile males play fighting, Etosha National Park, Namibia, August

Tony Heald / African lion (Panthera leo) juvenile males play fighting, Etosha National Park, Namibia, August

Charlie Summers / Chacma baboon (Papio ursinus) juveniles playing in tree, Botswana

Alex Mustard / A young California sealion (Zalophus californianus) playing with a starfish, inside an underwater cave. The pups will pick up a variety of objects (such as starfish, lumps of coral, shells and feather...

Alex Mustard / A young California sealion (Zalophus californianus) playing with a starfish, inside an underwater cave. The pups will pick up a variety of objects (such as starfish, lumps of coral, shells and feather...

Bernard Castelein / Himalayan Marmots (Marmota himalayana) play-fighting, Ladakh, India

Ernie Janes / Dalmation dogs playing on beach, Norfolk, UK, August

Anup Shah / African elephant calf (Loxodonta africana) pulling on a small shrub with its trunk. Masai Mara National Reserve, Kenya, August 2009