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  1. Health & Medicine

    Skin bacteria different in diabetic mice

    An excessive number and low diversity of skin bacteria could explain why wounds in diabetics are slow to heal

    By Tina Hesman Saey

  2. As the worms churn

    Burrowing animals mix soil and sediments, shaping the environment and scientists’ understanding of it.

    By Sid Perkins
  3. Earth

    World’s longest cave formation still growing

    Minerals still accumulate in New Mexico’s Snowy River.

    By Sid Perkins

  4. A partnership apart

    DNA in hand, scientists dissect and redefine the iconic lichen mutualism.

    By Susan Milius

  5. Better living through plasmonics

    Mixing light with nanotechnology could help treat cancer and build faster computers.