As the wild oyster population resurges, there is an added bonus — our waterways are getting cleaner. Mladen Antonov/AFP/Getty Images hide caption

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The Oyster's Mighty Comeback Is Creating Cleaner U.S. Waterways

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Rock shrimp from Florida used to be considered too hard-shelled to be worthwhile as commercial seafood. A custom-made machine to crack and split them has made the sweet crustaceans a favorite for Orlando chef Jessica Tantalo, who prepared them as part of Slow Fish 2016 in New Orleans. Eve Troeh for NPR hide caption

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A cover crop of rye grass comes up in a field in eastern Nebraska. Cover crops help hold moisture and nitrogen in the soil. They can reduce nitrate runoff and erosion. Grant Gerlock/Harvest Public Media hide caption

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Congress To Nutritionists: Don't Talk About The Environment

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Carp are collected at a breeding farm near the Belarus village of Ozerny in November 2013. Researchers say there's a lot the aquaculture industry can do to be more efficient. Viktor Drachev/AFP/Getty Images hide caption

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