News

  1. Life

    Male chimps exchange meat for sex

    A long-term study of chimps living in western Africa indicates that males hunt down monkeys not only to eat their meat, but also to exchange the meat for sex with female chimps.

    By Bruce Bower
  2. Animals

    Sonar causes rock-concert effect in dolphins

    Test of recorded sonar causes temporary hearing impairment in dolphins.

    By Susan Milius
  3. Life

    Primate vision puts pieces together

    Study suggests nerve cells in retinas create an intricate system of interlocking receptive fields.

    By Laura Sanders
  4. Earth

    Arctic ice more vulnerable than ever

    Ocean’s ice cap is smaller than long-term average and thinnest yet as melt season begins.