News

  1. Tech

    Corny collagen

    Corn engineered to produce collagen may someday replace slaughterhouse leftovers as a source of gelatin.

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  2. Earth

    Arctic snow was dirtier in early 1900s

    Arctic snow collects less soot now than it did a century ago, but it's still dirtier than it was before the Industrial Revolution.

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  3. Animals

    Bats hum for sugar too

    Some nectar-feeding bats metabolize sugars as rapidly as hummingbirds do.

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  4. Believers gain no health advantage

    Strong religious beliefs or practices don't appear to benefit depressed or socially isolated heart attack survivors.

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  5. Health & Medicine

    When antioxidants go bad

    Overproduction of antioxidants, usually thought to be beneficial, is the cause of an inherited heart disease.