Chien Lee / Minden / White-footed Sportive Lemur (Lepilemur leucopus) in cavity, Madagascar
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Mark Raycroft / Minden / White-tailed Deer (Odocoileus virginianus) buck in snowfall, North America
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Mark Raycroft / Minden / Border Collie (Canis familiaris), North America
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Juergen & Christine Sohns / Minden / Leopard (Panthera pardus), Sabi-sands Game Reserve, South Africa
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Jasper Doest / Gray Wolf (Canis lupus) pack in the snow, Norway
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Milan Radisics / Female Red fox (Vulpes vulpes) waiting to be fed at the back entrance of a house, Hungary. January.
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Joel Sartore / Photo Ark / Snow leopard (Panthera uncia) looking up, Miller Park Zoo. Vulnerable. Captive.
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Joel Sartore / Photo Ark / Red-crested turaco (Tauraco erythrolophus) looking around and raising crest, Tracy Aviary. Captive.
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Joel Sartore / Photo Ark / Himalayan monal pheasant (Lophophorus impejanus) male looking around, Pheasant Heaven. Captive.
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Joel Sartore / Photo Ark / Madagascan fish eagle (Haliaeetus vociferoides) flaring its head feathers, Madagascar's Tsimbazaza Botanical and Zoological Park. Captive.
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Joel Sartore / Photo Ark / Painted stork (Mycteria leucocephala) snapping towards the camera, Tracy Aviary. Captive.
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Joel Sartore / Photo Ark / Two African crowned cranes (Balearica regulorum regulorum) looking around, then one ruffles its feathers, Lincoln Children's Zoo. Captive.
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Joel Sartore / Photo Ark / Great green macaw (Ara ambiguus) turning its head and moving tongue, Tracy Aviary. Captive.
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Vishal Jadhav / Indian jackal (Canis aureus indicus) female grooming male's head, Maharashtra, India, September.
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Vishal Jadhav / Spotted owlet (Athene brama) female looking out of nest in rocks, males appears then flies off, Maharashtra, India, January.
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Lewis Jefferies / Red squirrel (Sciurus vulgaris) feeding on the ground in the Cairngorms National Park, Scotland, UK, June.
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Lewis Jefferies / Motion timelpase looking down on waterfall in Glenfeshie, Cairngorms, Scotland, UK, June.
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Konrad Wothe / Stoat (Mustela erminea) in white winter coat standing upright in snow, Upper Bavaria, Germany, Europe. February.
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David Pattyn / Pair of Great crested grebes (Podiceps cristatus) courtship dance display, The Netherlands, Europe. March.
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Magnus Lundgren / Juvenile Ocellaris / Common clownfish (Amphiprion ocellaris) looking out from its home in an anemone, Raja Ampat, West Papua, Indonesia, Pacific Ocean.
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Bruce Thomson / Crucifix toad / Holy cross frog (Notaden bennetti) sitting in shallow water after heavy summer rain, Westmar, Queensland, Australia.
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Joel Sartore / Photo Ark / Screaming hairy armadillo (Chaetophractus vellerosus) sniffing while looking at camera before approaching it, Parque de Las Leyendas in Lima, Peru. Captive.
Joel Sartore / Photo Ark / African wood owl (Strix woodfordii) looking around and towards camera, Monticello Cente, Monticello Grosseto. Captive.
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Joel Sartore / Photo Ark / Mentanani scops owl (Otus mantananensis rombloni) juvenile looking towards camera, Semirara Island Aviary. Captive.
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Joel Sartore / Photo Ark / Collared Scops Owl (Otus lettia) looking around, Angkor Centre for Conservation of Biodiversity, Cambodia. Captive.
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Joel Sartore / Photo Ark / Common Bay Owl (Phodilus badius) looking around, Penang Bird Park, Seberang Perai, Pulau Pinang. Captive.
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Tui De Roy / Darwin's small ground finch (Geospiza fuliginosa), inspecting Galapagos giant tortoise for ticks, Isabela Island, Galapagos, South America.
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David Tipling / Roe deer (Capreolus capreolus) doe with fawns in stubble field after harvest, mid summer, North Norfolk, UK. July.
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Jack Dykinga / Female Burrowing owl (Athene cunicularia) with two chicks in farm fields, near Marana, Arizona, USA.
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Paul Williams / Ocelot (Leopardus pardalis) high up in tree, Costa Rica, Central America, 2016. Filmed for the BBC series 'Big Cats'.
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Klein & Hubert / Cape buffalo (Syncerus caffer) with Yellow-billed oxpckers (Buphagus africanus) drinking at waterhole in dry season, South Luangwa National Park, Zambia, Africa.
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Danny Green / Barn owls (Tyto alba) perched on tree branch, late evening. Northamptonshire, UK, May.
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Danny Green / European badger (Meles meles) in woodland in late evening light. Scotland, UK, August.
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Danny Green / European badger (Meles meles) in late evening light, Scotland, UK, August.
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Danny Green / Long tailed tit (Aegithalos caudatus) perched on hawthorn. Hampshire, UK, May.
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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.
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Pal Hermansen / Pygmy owl (Glaucidium passerinum) looking directly at camera as it peers out of nest hole in dead tree trunk, Viken, Norway.
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Rose Summers / Slow motion clip of European otter (Lutra lutra) emerging from water, it pauses and looks around before diving back under, Devon, England, UK, May.
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Tony Wu / Japanese dwarf flying squirrel (Pteromys volans orii) gliding through snowy forest, Hokkaido, Japan.
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Doug Gimesy / Portrait of Emu (Dromaius novaehollandiae).
Kangaroo Island, South Australia, Australia.
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Richard Du Toit / Yellow mongoose (Cynictis penicillata) resting, Kgalagadi Transfrontier Park, Northern Cape Province, South Africa.
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Claudio Contreras / Caribbean flamingo (Phoenicopterus ruber) chick peering from under the wing of protective parent, breeding colony, Ria Lagartos Biosphere Reserve, Yucatan Peninsula, Mexico, June. Bookplate.
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Pal Hermansen / Portrait of a Sparrowhawk (Accipiter nisus), Telemark, Norway.
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Pal Hermansen / Close up of a Emperor penguin (Aptenodytes forsteri) face looking around and towards camera, Snow Hill Island, Antarctica, October.
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Charlie Summers / Black-footed ferret (Mustela nigripes) on Black-tailed prairie dog (Cynomys ludovicianus) mound, in snow. A reintroduction programme is underway with approximately 300 individuals of this critically e...