Edwin Giesbers / Whooper Swan (Cygnus cygnus) with its beak tucked under its wing. The Netherlands, June.
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Floris van Breugel / Sensationally twisted sandstone curves of Arizona's famous wave formation seen under partly cloudy skies. Vermilion Cliffs, Arizona, USA, December 2007.
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Wild Wonders of Europe / Widstr / Aerial view over the Arda river canyon, Madzharovo, Eastern Rhodope Mountains, Bulgaria, May 2013.
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Wild Wonders of Europe / Widstr / Aerial view over the Arda river canyon, Madzharovo, Eastern Rhodope Mountains, Bulgaria, May 2013.
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Ben Hall / Black-headed gull (Larus Ridibundus) in flight showing movement, Cheshire, UK, January
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Jerry Monkman / After sunset as seen from a bluff overlooking the Merrimack River in Canterbury, New Hampshire, USA. December 2009
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Philippe Clement / Furka Pass, mountain pass showing the hairpin curves of the road, Switzerland, July 2009
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Martin Gabriel / Close-up of curves in Woody / Monkey ladder vine (Bauhinia glabra) Palo Verde National Park, Costa Rica
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Steven David Miller / September Beach curves to the south below the Cape Donington Lighthouse, Lincoln National Park, South Australia 2007
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Thomas Marent / Babirusa (Babyrousa babyrussa) showing typical curves tusks, Sulawesi
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Ashley Cooper / Curves on edge of iceberg in Southern Ocean. One of the most rapidly warming areas on the planet. Spert Island, Palmer Archipelago, Antarctica. December 2019.
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Ashley Cooper / Curves on edge of iceberg in Southern Ocean. One of the most rapidly warming areas on the planet. Spert Island, Palmer Archipelago, Antarctica. December 2019.