Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult female 'Mosoko' aged 8 years crossing a river, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic
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Ismaele Tortella / Tracking shot of a Whooper swan (Cygnus cygnus) family walking, Lofoten, northern Norway, August.
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Danny Green / Polar bear (Ursus maritimus) walking across sea ice, reflected in water. Svalbard, Norway, July.
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Danny Green / Polar bear (Ursus maritimus) female and cubs, one cub walking up slope of ice in foreground. Svalbard, Norway, July.
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Danny Green / Polar bear (Ursus maritimus), two cubs walking on sea ice. Svalbard, Norway, July.
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Staffan Widstrand / Wild Wonders of China / Pere David's deer / Milu (Elaphurus davidianus), walking through water of Yangtze river, Hubei Tian'ezhou Milu National Nature Reserve, Shishou, Hubei, China
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Stefan Christmann / Emperor penguin (Aptenodytes forsteri), breeding colony with individuals in foreground walking to / from open water. Atka Bay, Antarctica. September 2017.
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SCOTLAND: The Big Picture / Red deer (Cervus elaphus) stag in upland landscape. Lochcarron, Highlands, Scotland, UK.
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Andy Rouse / Bengal tiger (Panthera tigris) walking through water, Ranthambhore, India. December
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Sergey Gorshkov / Leopard (Panthera pardus) walking beside waterhole, reflected in the water at dusk. Londolozi Private Game Reserve, Sabi Sands Game Reserve, South Africa.
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Guy Edwardes / Allen's / Lesser gallinule (Porphyrio alleni) walking on waterlilies, Chobe River, Botswana.
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Guy Edwardes / Black crake (Amaurornis flavirostra) standing on lily pads, Chobe River, Botswana.
