Neil Challis / Long-tailed macaque (Macaca fascicularis) mother grooming head of infant on branch, Central Thailand, June.
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Joel Sartore / Photo Ark / Horsfield's tarsier (Cephalopachus bancanus) close up of head, moving its ears, Ragunan Zoo, Indonesia. Captive.
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Joel Sartore / Photo Ark / Gray woolly monkey (Lagothrix cana) male picking up and holding its tail, Mantenedor da Fauna Silvestre Cariua. Endangered. Captive.
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Joel Sartore / Photo Ark / Japanese macaque (Macaca fuscata) two-week-old female lying down whilst sucking on thumb, Blank Park Zoo. Captive.
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Joel Sartore / Photo Ark / American flamingo (Phoenicopterus ruber) group lifting heads up into frame, Lincoln Children's Zoo. Captive.
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Joel Sartore / Photo Ark / Least bittern (Ixobrychus exilis) juvenile raising head up, Wildlife Rehabilitation Center, Roseville. 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 / 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 / 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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David Pattyn / Pair of Great crested grebes (Podiceps cristatus) performing courtship dance, The Netherlands, Europe. March.
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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 / Common Bay Owl (Phodilus badius) looking around, Penang Bird Park, Seberang Perai, Pulau Pinang. Captive.
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Mateusz Piesiak / Bramblings (Fringilla montifringilla) feeding on sunflower seeds in a field that could not be cut due to high water levels, Lower Silesia, Poland. Emotion'Ailes Photography Competition 2021, Categ...
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Uri Golman / Close up of a silverback Mountain gorilla (Gorilla beringei beringei) face with eyes closed, and hand / fingers, Virunga National Park, Democratic Republic of Congo.
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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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Joel Sartore / Photo Ark / A black phase critically endangered Indochinese leopard (Panthera pardus delacouri) snarling, Zoo Taiping, Malaysia. Captive.
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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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Eric Baccega / Giant panda (Ailuropoda melanoleuca) female, Huan Huan, holding cub aged one month, Beauval ZooPark, France. 9 September 2021.
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Eric Baccega / Giant panda (Ailuropoda melanoleuca) female, Huan Huan, holding cub aged one month, Beauval ZooPark, France. 9 September 2021.
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Eric Baccega / Giant panda (Ailuropoda melanoleuca) female, Huan Huan, holding cub aged one month, Beauval ZooPark, France. 9 September 2021.
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Eric Baccega / Giant panda (Ailuropoda melanoleuca) female, Huan Huan, holding cub aged one month, Beauval ZooPark, France. 9 September 2021.
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Robert Thompson / African golden emperor moth (Gonimbrasia krucki), close up of male head , Kenya, Africa Controlled conditions.
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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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Solvin Zankl / Scaleless black dragonfish (Melanostomias biseriatus) appearing out of the darkness and swimming towards the camera, Atlantic Ocean close to Cape Verde.
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Solvin Zankl / Portrait of Scaleless black dragonfish (Melanostomias biseriatus), Atlantic Ocean close to Cape Verde.
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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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Andy Murch / Spiny dogfish (Squalus acanthias) portrait. Rhode Island, New England, USA. August.
Andy Rouse / Roe deer (Capreolus capreolus) amongst dandelion seed heads at sunset, UK. May.
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Andy Rouse / RF - Roe deer (Capreolus capreolus) feeding on dandelion seed heads at sunset, UK. May. UK. (This image may be licensed either as rights managed or royalty free.)
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George Sanker / Blue jay (Cyanocitta cristata) flying, head on, Acadia National Park, Maine, USA. May.
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Danny Green / Arctic fox (Vulpes lagopus) cub in meadow, portrait. Hornstrandir Nature Reserve, Iceland, July.
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Brandon Cole / Giant moray eel (Gymnothorax javanicus), peering up from inside colony of Plate Fire Coral (Millepora platyphylla). Egypt, Red Sea.
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Nick Upton / Greylag goose (Anser anser) landing with its wings and head raised to chase off another from its territory in a marshland pool, Gloucestershire, UK, January.
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Tui De Roy / Alcedo giant tortoise (Chelonoidis vandenburghi), Alcedo Volcano, Isabela Island, Galapagos
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Marie Read / Northern Cardinals (Cardinalis cardinalis) male and female in the snow, photographed from low angle, Freeville, New York, USA. April 2020.
Claudio Contreras / Desmarest's hutia (Capromys pilorides doceleguas), Jardines de la Reina / Gardens of the Queen National Park, Caribbean Sea, Ciego de Avila, Cuba.
