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  1. Mood Bugs: Beetle changes color in fluid fashion

    A Central American beetle changes color in a novel way, using its body fluid to control the reflectivity of its shell.

    By Carolyn Barry
  2. Planetary Science

    Geyser gawker: Plans for a closer look at Enceladus

    The Cassini spacecraft will change course to take a close look next March at plumes of water vapor emanating from the south pole of Saturn's moon Enceladus.

    By Ron Cowen
  3. Health & Medicine

    Anti-inflammatory prevents pancreatic cancer in mice

    An anti-inflammatory drug of the COX-2 inhibitor family blocks precancerous lesions in mice prone to pancreatic cancer.

    By Nathan Seppa
  4. Math

    Calculating the Word Spurt

    Mathematics, not brain development, explains why toddlers begin to pick up words quickly after a slow start.