News

  1. Life

    A cougar in Connecticut

    Using DNA and trailside cameras, wildlife biologists retrace the 18-month, 2,000-mile journey of a young male cat.

    By Nadia Drake
  2. Life

    Wasp has built-in Facebook

    An insect species with a tricky social life has a special facility for telling one bug's mug from another.

    By Susan Milius
  3. Life

    DNA switches tied to non-Hodgkin lymphoma

    Genetic defects lead to altered activity in other genes.

    By Tina Hesman Saey
  4. Tech

    Cracked sewers bleed fecal germs

    Studies follow leaks into waterways and drinking supplies.

    By Janet Raloff
  5. Humans

    Brain waves make a fast brake

    New technology would allow drivers to slam on the brakes faster just by thinking about it.