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  1. Science & Society

    Is U.S. democracy in decline? Here’s what the science says

    Political scientists disagree over how to interpret a slight dip in the health of U.S. democracy.

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  2. Health & Medicine

    50 years ago, chronic pain mystified scientists

    Chronic pain has puzzled scientists for decades, but diagnoses and treatments have come a long way.

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  3. Environment

    An idea to save Mexico’s oyamel forests could help monarch butterflies too

    Climate change is putting monarch butterflies’ overwintering forests in Mexico at risk. Could planting new forests solve that problem?

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  4. Oceans

    How tiny phytoplankton trek long distances upward in the ocean

    Taking in seawater while filtering out dense salts lets unicellular phytoplankton migrate tens of meters vertically toward sunnier seas.