Terry Whittaker / Two Arctic fox (Vulpes lagopus) cubs playing together near den, Hornvik, Hornstrandir Nature reserve, Iceland, July.
Terry Whittaker / Arctic fox (Vulpes lagopus) cubs playing with feather, playfighting and chasing each other near den, Hornvik, Hornstrandir Nature reserve, Iceland, July.
Klein & Hubert / African elephant (Loxodonta africana) calf playing in savanna, Kenya, Africa.
Richard Hopkins / Female European otter (Lutra lutra) looking directly at camera as her male cub suckles before she turns away from him; he pesters her to feed him again. Shetland, UK, September.
David Pattyn / Great crested grebe (Podiceps cristatus) young playing with a feather next to one of the parents. Valkenhorst Nature Reserve, Valkenswaard, The Netherlands. May
Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) yearling pup playing with own air bubbles in shallows, Gardner Islet, Espanola Island, Galapagos, Ecuador
Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) pups playing at sunrise, Puerto Egas, Santiago Island, Galapagos, Ecuador
Tui De Roy / Galapagos sea lion (Zalophus wollebaeki) pups playing in shallows, Sombrero Chino, Santiago Island, Galapagos, Ecuador
Andy Murch / Cape fur seal (Arctocephalus pusillus) playing with Dark shyshark (Haploblepharus pictus) carcass, seal diving in background. False Bay, South Africa. May.
Bence Mate / Wild dog (Lycaon pictus) two pups playing in dust, Mkuze, South Africa. August. Highly commended in the Mammals category of the GDT European Wildlife Photographer of the Year Competition 2020.
Philippe Clement / Three Hudson Bay wolf pups (Canis lupus hudsonicus) playing near den, Bavarian Wildlife Forest Park, Germany, June. Captive, native to Canada.
Anup Shah / African elephant (Loxodonta africana) babies playing . Masai Mara National Reserve, Kenya. July 2017.
Simon Littlejohn / Family of European otters (Lutra lutra) feeding and playing amongst Whitewater crowfoot (Ranunculus aquatilis) flowers, River Stour, Dorset, England, UK, June.
Simon Littlejohn / Female European otter (Lutra lutra) and two large pups playing and feeding in mid river, River Stour, Dorset, England, UK, June.
Tui De Roy / Black rhino (Diceros bicornis) and White rhino (Ceratotherium simum), being harrassed by playfighting White rhino bull, Solio Game Reserve, Laikipia, Kenya. September.
Danny Green / Arctic fox (Vulpes lagopus) cubs playing. Hornstrandir Nature Reserve, Iceland, July.
Danny Green / Sea otter (Enhydra lutris) female and pup playing. Alaska, USA, February.
Tui De Roy / Galapagos sea lions (Zalophus wollebaeki) sub adult males playing with starfish, Mosquera Islet, Galapagos.
Suzi Eszterhas / Northern muriqui monkey (Brachyteles hypoxanthus) juvenile aged one year, in tree playing with its mother's tail, RPPN Feliciano Miguel Abdala, Atlantic Forest, Brazil. June.
Matthew Maran / Red fox vixen (Vulpes vulpes) with four suckling cubs in an allotment, cubs start to play, London, England, UK, May.
Matthew Maran / Red fox (Vulpes vulpes) plays with a dead common garden frog (Rana temporaria) on allotment, North London, England, during coronavirus lockdown, March 2020.
Matthew Maran / Red fox cubs (Vulpes vulpes) play fighting in an allotment, London, England, UK, June.
Matthew Maran / Male Red fox (Vulpes vulpes) interacting with cub in allotment, London, England, UK, June.
Matthew Maran / Red fox vixen (Vulpes vulpes) grooming and playing with her cubs in an allotment, London, England, UK, June.
David Hall / Steller sea lions (Eumetopias jubatus), three playing underwater, Inian Island, Alaska, USA. August.
David Hall / Steller sea lions (Eumetopias jubatus) playing underwater, Inian Island, Alaska, USA. August.
Karine Aigner / Portrait of a wild female Bobcat (Lynx rufus) kitten playing, Texas, USA. September.
Andres M. Dominguez / Three juvenile Golden jackal (Canis aureus) pups running across a path, Danube Delta, Romania, July.
Will Burrard-Lucas / White rhinoceroses (Ceratotherium simum) with calf playing with adult, Solio Game Reserve, Solio Ranch, Kenya. Taken with remote camera buggy / BeetleCam. EDITORIAL USE ONLY. All other uses require cl...
Danny Green / Reindeer (Rangifer tarandus), two play fighting in snow. Svalbard, Norway, April.
Danny Green / Polar bear (Ursus maritimus) female and cubs play fighting. Svalbard, Norway, March 2018.
Danny Green / Polar bear (Ursus maritimus), two cubs playing, leaping across sea ice, reflected in water. Svalbard, Norway, July.
Alex Mustard / Spinner dolphin (Stenella longirostris) pod socialising close to surface. Fury Shoal, Sataya Reef, Marsa Alam, Egypt.
Ann & Steve Toon / African elephants (Loxodonta africana) herd silhouetted at sunset. Chobe National Park, Botswana.
Ingo Arndt / Female Puma (Puma concolor) with two cubs aged around four months, Torres del Paine National Park, Patagonia, Chile, July.
Tony Wu / Humpback whale (Megaptera novaeangliae australis) male calf playing at ocean surface after coming up to breathe. Vava'u Islands, Tonga.
Felis Images / Asiatic lion (Panthera leo persica), female and cubs in morning light, cub biting mother's leg. Gir National Park, Gujarat, India. Photo?hillip Ross/Felis Images
Staffan Widstrand / African bush elephant, (Loxodonta africana) two head to head playing, Zimanga Private Nature Reserve, KwaZulu Natal, South Africa
Jordi Chias / Leopard seal (Hydrurga leptonyx) with mouth open, Antarctic Peninsula, Antarctica.
Shane Gross / Bottlenose dolphin (Tursiops truncatus) underwater playing in the shallows off Eleuthera, Bahamas.
Oscar Dewhurst / Fallow deer (Dama dama) walking across frost-covered playing fields at dawn, with tower blocks of London in the background. Richmond Park, London, UK. December
Bernard Castelein / Rhesus macaque (Macaca mulatta), juveniles playing in tree, Keoladeo NP, Bharatpur, India
Suzi Eszterhas / Hyacinth Macaw (Anadorhynchus hyacinthinus) two playing whilst hanging upside down, Pantanal, Brazil
Espen Bergersen / Aerial shot of a Humpback whale (Megaptera novaeangliae) swimming showing belly, Troms, Norway, January.
Espen Bergersen / Aerial shot of a Humpback whale (Megaptera novaeangliae) showing belly and blowing, Troms, Norway, January.
Tony Heald / Elephant (Loxodonta africana) babies playing, Etosha National Park,Namibia.
David Gallan / Two Southern right whales (Eubalaena australis) playing in shallows, taken with drone, Tathra Beach, New South Wales, Australia, August.
Matthew Maran / Red Fox (Vulpes Vulpes) cubs play fighting
North London, England, UK, June.