Danny Green / RF - Polar Bear (Ursus maritimus) sleeping, Churchill, Canada, November (This image may be licensed either as rights managed or royalty free.)
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Frederique Olivier / Black-footed rock wallaby (Petrogale lateralis) resting in heat, Pilgonaman Gorge, Cape Range National Park, Western Australia.
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Ann & Steve Toon / RF - Common blue wildebeest (gnu) (Connochaetes taurinus) mother and baby, Kgalagadi Transfrontier Park, Northern Cape, South Africa, January 2016. (This image may be licensed either as rights managed...
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Alex Hyde / RF - Ghost Glass Frog (Sachatamia ilex) Central Caribbean foothills, Costa Rica. (This image may be licensed either as rights managed or royalty free.)
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Aflo / Tabby cat lying down on pavement, Gifu, Japan, July.
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Ole Jorgen Liodden / Polar bear (Ursus maritimus) resting on snow, Svalbard, Norway, July.
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Roy Mangersnes / Polar bear (Ursus maritimus) walking on wet rocks, Kvitoya (White Island), Svalbard, Norway, September.
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Yukihiro Fukuda / Feral domestic rabbit (Oryctolagus cuniculus) napping on back. This behaviour only occurs when a rabbit feels absolutely safe. Okunojima Island, also known as Rabbit Island, Hiroshima, Japan.
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Anup Shah / Stulmann's blue monkey (Cercopithecus mitis stuhlmanni) baby aged 9-12 months 'Krill' with mother 'Kipper' holding concrete (licked for the salts and minerals). Kakamega Forest South, Western Province...
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Richard Du Toit / Vervet Monkey (Chlorocebus aethiops) resting in tree, Kruger National Park, Limpopo Province, South Africa, November.
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Frederique Olivier / Emperor penguin (Aptenodytes forsteri) huddle in bad weather, Antarctica, July.
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Loic Poidevin / Lesser Flamingo (Phoenicopterus minor) caught in tree and dead from exhaustion, Nakuru Lake NP, Kenya.