Uncategorized

  1. Anthropology

    Human ancestors threw stone-tipped spears at prey

    African discoveries show that hunting weapons thrown from a distance appeared by 279,000 years ago.

    By Bruce Bower
  2. Health & Medicine

    Quick cooling after cardiac arrest questioned

    For a decade, doctors have made induced hypothermia standard practice.

    By Laura Beil
  3. Animals

    Mothballs, rubbing alcohol score poorly in tests of DIY bedbug control

    Mattress encasement, dry ice in bags, hot clothes dryers do help control infestation.

    By Susan Milius
  4. Earth

    Fire may smolder under Antarctic ice

    Quakes hint at moving magma that could influence glacial flow.

    By Beth Mole
  5. Astronomy

    Solar explosion forms ‘Canyon of Fire’

    Just when the sun was looking especially lethargic, a violent eruption left behind a vast chasm of superheated gas on the solar surface.