News

  1. Anthropology

    Tools for Prey: Female chimps move to fore in hunting

    For the first time, researchers have observed wild chimpanzees making and using tools to hunt other animals, a practice adopted mainly by adult females and youngsters.

    By Bruce Bower
  2. Health & Medicine

    Nice Shot: Hepatitis E vaccine passes critical test

    An experimental vaccine for hepatitis E has proved nearly 96 percent protective in a test in Nepalese soldiers.

    By Nathan Seppa
  3. Health & Medicine

    Cocoa compound increases brain blood flow

    Cocoa that retains compounds usually removed to soften the product's flavor can significantly improve blood flow to the brain.

    By Christen Brownlee
  4. Earth

    Subglacial lakes may influence ice flow

    The flow of water into and out of massive, ice-covered lakes in Antarctica may influence the speed at which the overlying glaciers move toward the sea.