Fabio Pupin / Peringuey's desert adder, (Bitis peringueyi), sidewinding on dune, Namib desert, Namibia, February . Non-ex.
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Theo Bosboom / Blue hour before sunrise over the dunes of Seilebost beach, Isle of Harris, Hebrides, Scotland. February 2018.
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David Woodfall / Cheviot sheep grazing eroding machair at front of sand dunes, North Uist, Scotland, UK, June.
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Terry Whittaker / Red foxes (Vulpes vulpes) fighting in sand dune habitat, Holland, Netherlands. November.
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Terry Whittaker / RF - Two Red foxes (Vulpes vulpes) on hind legs play fighting, Netherlands. (This image may be licensed either as rights managed or royalty free.)
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Ross Hoddinott / RF - Sand dunes with Marram grass (Ammophila arenaria) and beach at Seilebost beach, Isle of Harris, Scotland, UK. October (This image may be licensed either as rights managed or royalty free.)
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Enrique Lopez-Tapia / Bactrian camels (Camelus bactrianus) on sand, Nubra Valley, Ladakh, India. September.
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Shane P. White / Freshwater lagoons amid sand dunes, Lencois Maranhenses National Park, Brazil
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Jack Dykinga / Birdcage evening primrose (Oenothera deltoides) flowering in the sand dune flats near Joshua Tree National Park, California, USA, March.
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Guy Edwardes / Sand dunes at Luskentyre with view to Taransay. Isle of Harris, Outer Hebrides, Scotland, UK. November 2016.
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Jack Dykinga / Eroded sandstone petrified sand dune formations at sunrise, Vermilion Cliffs National Monument, Arizona. USA.
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Jack Dykinga / Petrified sand dune sandstone formations with eroded stratified patterns, looking into the Vermilion Cliffs National Monument, Arizona, USA. November.