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Brendan Borrell

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    Losing His Sight, a Scientist Sees an End to a Deadly Disease

    Bill Jacobs lights the way to better tuberculosis drugs.

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    How to Build a Better Bat Cave

    Paul Kingsbury/The Nature Conservancy In the winter of 1975, a biologist named Merlin Tuttle bought himself a state-of-the-art digital thermometer and set out on a road trip from Wisconsin down to Florida. Tuttle, who was in his mid-30s and sporting a brown, push-broom mustache, was trying to measure something that no one had really measured […]