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  1. Humans

    Tulane’s traveling med school

    Houston medical schools opened their facilities to a sister institution in New Orleans whose faculty and students were sent into exile by Hurricane Katrina's floodwaters.

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  2. Tech

    Humane bloodletting

    Medical researchers have designed a new lancet that dramatically reduces the pain experienced by lab mice during blood-sampling procedures.

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  3. Flu from horses is racing among dogs

    A highly contagious influenza virus that has killed greyhounds and sickened other dogs may have first jumped to canines from a single infected horse.

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  4. Planetary Science

    What whacked the inner solar system?

    Planetary scientists have determined that the cavalcade of space debris that hammered the inner solar system for the first 700 million years of its existence were main-belt asteroids, not comets.