News

  1. Animals

    Windows may kill up to 988 million birds a year in the United States

    Single-family homes and low-rise buildings do much more damage than skyscrapers.

    By Susan Milius
  2. Life

    How to tell good gut microbes from bad

    Researchers sort out influences of specific bacteria on body fat, the immune system.

    By Tina Hesman Saey
  3. Animals

    Mantis shrimp’s bizarre visual system may save brainpower

    The mantis shrimp sees each color separately with one of a dozen kinds of specialized cells, a system that may help the animal quickly see colors without a lot of brainpower.

    By Laura Sanders
  4. Planetary Science

    Old rover finds new evidence of water on Mars

    Opportunity’s analysis of rocks at Endeavour crater reveals chemistry that could have supported life.