News

  1. Health & Medicine

    Birthing age and ovarian cancer risk

    Giving birth confers on women some protection against ovarian cancer, and the later in life the last pregnancy happens, the better the protection.

    By Nathan Seppa
  2. Anthropology

    Chimps mature with human ancestor

    The Stone Age human ancestor Homo erectus grew at about the same pace as wild chimpanzees today do.

    By Bruce Bower
  3. Astronomy

    Cassini eyes Iapetus

    Only a few days after it entered orbit around Saturn, the Cassini spacecraft captured an image of Saturn's split- personality moon Iapetus.

    By Ron Cowen
  4. Animals

    Trail Mix: Espionage among the bees

    Tests with two kinds of stingless bees suggest that the more aggressive species uses scent-based espionage to target raids on the milder species' food.