News

  1. All Cried Out: Major depression puts lid on tears

    A new study suggests that depressed individuals cry no more often in response to a sad situation than nondepressed people do.

    By Bruce Bower

  2. Rescue Rat: Could wired rodents save the day?

    Researchers have wired a rat's brain so that someone at a laptop computer can steer the animal through mazes and over rubble.

    By Susan Milius
  3. Paleontology

    Ancient Whodunit: Scientists indict wee suspects in ancient deaths

    Evidence locked in 180,000-year-old sediments suggests that a toxic algae bloom was the cause of death for a large group of mammals that were fossilized intact on an ancient lake bottom.

    By Sid Perkins

  4. Small Wonder: Microbial hitchhiker has few genes

    Scientists have identified a microbe with remarkably few genes living on another microbe on the ocean floor.