News

  1. Health & Medicine

    Downside of red-hot chili peppers

    In the wild, a culinary kick comes with risks to the plant.

    By Susan Milius
  2. Life

    Mosquito fish count comrades to stay alive

    New experiments indicate that mosquito fish can count small numbers of companions swimming in different groups, an ability that apparently evolved to assist these fish in avoiding predators.

    By Bruce Bower
  3. Health & Medicine

    A role for Merkels

    Mysterious skin cells known as Merkel cells are required to sense light touches.

    By Tina Hesman Saey
  4. Climate

    Carbon dioxide not to blame in ice age mystery

    Scientists look at seafloor sediments to determine that a long-term decline in carbon dioxide is not the reason for less frequent ice ages.