Luke Massey / Close-up of a Wild boar (Sus scrofa) approaching a remote camera and knocking it over, Forest of Dean, Gloucestershire, England, UK, May.
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Doug Allan / Killer Whales (Orcinus orca) spy-hopping to observe Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Free...
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Doug Allan / Killer Whales (Orcinus orca) create bow wave to knock Weddell Seal (Leptonychotes weddellii) from the ice; a co-operative hunting strategy. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame bo...
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Doug Allan / Killer Whales (Orcinus orca) approaching Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame bo...
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Nick Upton / Male Yellow dung flies (Scathophaga stercoraria) competing for mates on sheep dung, trying to knock and wrestle other males off the backs of the females they are guarding, Wiltshire, England, UK, Marc...
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Nick Upton / Male Yellow dung flies (Scathophaga stercoraria) competing for mates on sheep dung, trying to knock and wrestle other males off the backs of the females they are guarding, Wiltshire, England, UK, Marc...
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Nick Upton / Male Yellow dung flies (Scathophaga stercoraria) competing for mates on sheep dung, trying to knock and wrestle other males off the backs of the females they are guarding, Wiltshire, England, UK, Marc...
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Alan Williams / Sand Martin (Riparia riparia) right hand bird flying in to knock other bird off cliff during rivalry for nesting place, Wirral Merseyside UK June
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Peter Cairns / 2020VISION / Great Spotted Woodpecker (Dendrocopus major) foraging on birch trunk, Cairngorms National Park, Scotland, UK, December. 2020VISION Book Plate. Did you know? Great Spotted Woodpeckers can knock on wood...
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Doug Allan / Killer Whale (Orcinus orca) observing Weddell Seal (Leptonychotes weddellii) in preparation to knock it from the ice by creating a wave. Marguerite Bay, Antarctic Peninsula, summer. Freeze Frame book...
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Jeff Rotman / El Molo child suffering from rickets, caused by a diet consisting primarily of fish. El Molo children suffer from vitamin D deficiency, which develops into the nutritional disease causing deformities...
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Steven David Miller / Archer fish {Toxotes chatareus} spitting a stream of water at an insect to knock it down for food, Chamberlain Gorge, El Questro, Kimberley, Western Australia, September
