Mark Bowler / Aerial view of Amazon rainforest with river, Peru
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Jeff Foott / Winding road and sandstone formations, La Sal Mountains, Arches National Park, Utah
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Juan Carlos Munoz / Aerial view of Delta Sierpe River Terraba, Corcovado National Park, Osa Peninsula, Puntarenas Province, Costa Rica. December 2014.
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Juan Carlos Munoz / Aerial view of Delta Sierpe River Terraba, Corcovado National Park, Osa Peninsula, Puntarenas Province, Costa Rica. December 2014.
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Pal Hermansen / Aerial view of river delta, South West Iceland, June 2014. Finalist in the Art of Nature Category of the Big Picture Competition 2015.
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Jack Dykinga / Road winding through aspen trees (Populus tremuloides) in autumn, Dixie National Forest, Boulder Mountain, Utah. October 2013.
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Juan Carlos Munoz / Aerial view of the River Kinabatangan and riverine tropical rainforest, Sabah, Malaysia, Borneo, Asia.
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Staffan Widstrand,Staffan Widstrand / Throw-net fisherman, on raft, Pulicat Lake, Tamil Nadu, India, January 2013.
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Daniel Heuclin / Sand Viper (Cerastes vipera) side winding across sand dunes, near Chingueti, Mauritania
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Juan Carlos Munoz / Aerial view over subtropical mangrove wetlands of the Everglades National Park. Florida, USA, February 2012.
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Juan Carlos Munoz / River patterns from melting glacier. Markarfljot river, South Iceland, July 2009
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Barrie Britton / Sunset over winding river in Bayinbuluke Swan Lake Nature Reserve. Xinjiang, China. Picture taken during filming of BBC "Wild China" TV Series, June 2006.