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An artist's rendering of what Dearcmhara shawcrossi probably looked like in dinosaur times. Todd Marshall/University of Edinburgh hide caption

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Todd Marshall/University of Edinburgh

Ancient Scottish Sea Reptile Not 'Nessie,' But Just As Cute

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Current water-filtering technology is costly, but MIT scientists are testing a simpler and cheaper method that uses wood from white pine trees. Wikimedia Commons hide caption

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Wikimedia Commons

To Clean Drinking Water, All You Need Is A Stick

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Dr. Jim Olson meets with Carver Faull at Seattle Children's Hospital in August. Carver, now 12, had surgery to remove a brain tumor in 2012. Matthew Ryan Williams for NPR hide caption

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Matthew Ryan Williams for NPR

Treating Kids' Cancer With Science And A Pocket Full Of Hope

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