Uncategorized

  1. Archaeology

    These knotted cords may hide the first evidence that the Incas collected taxes

    Some knotted string devices point to crop levies imposed by the Incan empire, researchers say. But other khipus continue to evade description.

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  2. Genetics

    Genealogy companies could struggle to keep clients’ data from police

    Police probably won’t stop searching DNA family trees to find crime suspects. New restrictions on database searches could spur more fights over privacy.

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  3. Life

    Some fungi trade phosphorus with plants like savvy stockbrokers

    New views show how fungi shift their stores of phosphorus toward more favorable markets where the nutrient is scarce.

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  4. Agriculture

    The U.S.