News

  1. Animals

    Tadpoles kill by supersuction

    A high-speed video shows tiny African tadpoles that catch their prey in a manner unlike that used by any other frog larvae: by shooting out a tubular mouth for superfast suction.

    By Susan Milius
  2. Health & Medicine

    Immune protein may stall HIV

    People who have HIV but don't progress to AIDS make extra perforin, a protein that helps kill infected cells.

    By Nathan Seppa
  3. Planetary Science

    Europa’s freckles

    Reddish spots and shallow pits that pepper the surface of Jupiter's moon Europa may mark regions where warmer and less dense ice percolates to the surface.

    By Ron Cowen
  4. Planetary Science

    Another moon for Uranus

    Astronomers have confirmed the existence of the 21st moon known to be orbiting Uranus.