News

  1. Health & Medicine

    Clotting protein hinders nerve repair

    A blood-clotting protein called fibrin seems to exacerbate the regrowth problems that plague severed nerves.

    By Nathan Seppa
  2. Animals

    Nephews, Cousins . . . Who Cares? Detecting kin doesn’t mean favoring them

    New tests of the amazing nose power of Belding's ground squirrels has solved a 25-year-old puzzle about doing dangerous favors for relatives.

    By Susan Milius
  3. Earth

    All Cracked Up from the Heat? Major hunk of an Antarctic ice shelf shatters and drifts away

    A Rhode Island-size section of an Antarctic ice shelf splintered into thousands of icebergs in a mere 5-week period during the area's warmest summer on record.