Yukihiro Fukuda / Feral domestic rabbit (Oryctolagus cuniculus) standing on hind legs on coast, Okunojima Island, also known as Rabbit Island, Hiroshima, Japan.
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Christophe Courteau / Mountain gorilla (Gorilla beringei beringei) blackback, juvenile male demonstrating power. Volcanoes National Park, Rwanda.
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Christophe Courteau / Mountain gorilla (Gorilla beringei beringei) blackback, juvenile male demonstrating power. Volcanoes National Park, Rwanda.
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Andy Rouse / Bengal tiger (Panthera tigris) male 'T91 - Cowboy' at base of tree, Ranthambhore, India, Endangered species.
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SCOTLAND: The Big Picture / Red Squirrel (Sciurus vulgaris) reaching up and standing on hind legs. Cairngorms National Park, Highlands, Scotland, UK, March.
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Carol Walker / Two wild pinto Mustang stallions battle for dominance in Sand Wash Basin, Colorado, USA.
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Carol Walker / Two wild Mustang stallions fighting in the White Mountain Herd Area, Wyoming, USA. August.
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Andy Trowbridge / Red squirrel (Sciurus vulgaris) standing on hind legs looking alert. Southern Norway. November.
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Mark Taylor / Cockapoo, Cocker spaniel cross Poodle puppy on hind legs.
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Mark Taylor / Tabby kitten, 6 weeks, standing on hind legs.
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Igor Shpilenok / Young female Kamchatka brown bear (Ursus arctos beringianus) playing with oil drum, Kronotsky Nature Reserve, Kamchatka, Far East Russia. May. These bears can develop addiction to sniffing the aviatio...
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Wim van den Heever / Leopard (Panthera pardus) hunting Springbok (Antidorcas marsupialis) Etosha, Namibia, Finalist in the Mammals Category of the Wildlife Photographer of the Year 2015.
