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  1. Staph bacteria are choosy about their iron source

    Staphylococcus bacteria prefer to get their iron from heme, the ring-shaped portion of oxygen-carrying proteins such as hemoglobin.

    By Christen Brownlee

  2. Nature reduces kids’ signs of attention disorder

    Spending leisure time amid greenery rather than in built-up environments appears to improve behavior in children with attention-deficit hyperactivity disorder.

    By Ben Harder
  3. Plants

    A new, slimy method of self-pollination

    When all else fails for pollination, a Chinese herb in the ginger family resorts to something botanists say they haven't seen before: a do-it-yourself oil slick.

    By Susan Milius
  4. Astronomy

    Crashing Genesis

    Scientists are trying to salvage the fragile samples of the solar wind collected by the Genesis spacecraft, which crashed to Earth on Sept.