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Stories from Sarah Zielinski

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The Tornado That Saved Washington

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Flu Shots for (Nearly) All

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Spain’s Mercury Fountain

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Toads Closer to Tanzanian Home

Catnip’s Effect on Big (and Little) Cats

Snow's map led him to the source of a London cholera outbreak in 1854

Cholera, John Snow and the Grand Experiment

A British physician first determined that cholera spread through contaminated water in the 1850s, but the disease remains a major health risk today

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The Truth Behind Beer Goggles

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Hurricanes and the Color of the Oceans

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Flowers May Adapt Faster than Thought to Climate Change

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What Monkeynomics Can Tell Us About Us

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Plane May Be Better Than Car in Climate Equation

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Searching for Bad Poetry About Geology

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UPDATED: Priceless Russian Fruit Plant Collection Faces Demolition

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A Cat-Like Crocodile from the Cretaceous

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The Problem with Space Junk

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Whooping Cough on the Rise in Several States

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Three Classes Wannabe Doctors Should Take Before Med School

Nancy Knowlton is a marine biologist at the Smithsonian's National Museum of Natural History and a leading authority on coral reefs.

By the Numbers: A Marine Advisory

Scientists say the outlook for the world’s oceans is bleak—unless we stop overfishing and reduce air and water pollution

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Koalas and Kangaroos Have South American Roots

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Electric Cars Won’t Save Us from Climate Change

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