News

  1. Earth

    2002’s tornado tally well below average

    As of August 1, barely half the usual number of tornadoes had struck the lower 48 states of the United States.

    By Sid Perkins
  2. Animals

    Male butterflies are driven to drink

    Monarch butterflies that winter in California, especially males that had a demanding day, search out dewdrops as a water source.

    By Susan Milius
  3. Earth

    Cigarette smoke can harm kitty, too

    Compared with animals living in smokefree homes, cats who lived for some time with a smoker at least doubled their risk of developing the feline analog of the cancer non-Hodgkin's lymphoma.

    By Janet Raloff
  4. Tech

    Micromachine runs on nuclear power

    Radioactivity creates electric fields that wiggle a tiny lever.