Tony Heald / Hippopotamus {Hippopotamus amphibius} territorial defense at water edge, Chobe national park, Botswana.
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Jack Dykinga / Aurora Borealis reflected in Polar Lake, conifers silhouetted at edge. Near Great Slave Lake, Northwest Territories, Canada. September 2018.
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Guy Edwardes / Lobster pots at edge of Loch Duich, Eilean Donan Castle in background. Highlands, Scotland, UK. January 2014.
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Andy Rouse / Polar bear (Ursus maritimus) standing on pack ice at the water's edge, Svalbard, Norway. June.
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Ross Hoddinott / Catbells and the edge of Derwentwater bathed in early morning light and autumnal colours, Latrigg, Keswick, The Lake District, Cumbria, UK. November 2016.
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Frederique Olivier / Emperor penguin (Aptenodytes forsteri) tobogganing on an iceberg at sunset and diving from the edge, seen from a moving boat, Antarctica.
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Frederique Olivier / Group of Adelie penguins (Pygoscelis adeliae) diving from the edge of the sea ice, Antarctica.
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Ingo Arndt / Grizzly bear (Ursus arctos horribilis) silhouette, Lake Clark National Park, Alaska
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Ingo Arndt / Coastal edge of Perito Moreno glacier, Patagonia, Argentina 2002
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Bence Mate / Great egret (Ardea alba) group of five at water's edge, with very out of focus egret in foreground. Lake Csaj, Kiskunsagi National Park, Pusztaszer, Hungary, February.
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Jussi Murtosaari / European Dipper (Cinclus cinclus) on ice next to stream, winter, Finland. February.
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Bence Mate / European otter (Lutra lutra) group with one shaking off water, Kiskunsagi National Park, Hungary, October.