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  1. Health & Medicine

    Microbes weigh in on obesity

    The kinds of microbes living in an infant's gut may influence weight gain later in childhood.

    By Rachel Ehrenberg

  2. High CO2—a gourmet boon for crop pest

    Relatively high concentrations of atmospheric carbon dioxide weaken soybean defenses against Japanese beetles.

    By Susan Milius
  3. Health & Medicine

    You, in a Dish

    Human cells grown in conditions that mimic life inside the body are beginning to replace lab animals for testing drug candidates and industrial chemicals.

    By Patrick Barry
  4. Materials Science

    Quantum Cocoon

    Diamond can hold quantum information even at room temperature, which makes it a candidate material for future quantum computers.