Shane Gross / Queen conch (Lobatus gigas) feeding on the algae growing on seagrass (Thalassia testudinum) Exuma, Bahamas
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Michel Roggo / Water soldier (Stratiotes aloides) and Water lily (Nymphaea sp.) In channel of the Danube Delta, Romania May 2015 . Photographed for The Freshwater Project
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Michel Roggo / Water soldier (Stratiotes aloides) and other aquatic plants In channel of the Danube Delta, Romania May 2015 . Photographed for The Freshwater Project