Uncategorized

  1. Anthropology

    Noses didn’t need cold to evolve

    Neandertals evolved big, broad noses not in response to a cold climate, as has often been argued, but in conjunction with the expansion of their upper jaws.

    By Bruce Bower
  2. Health & Medicine

    Step up to denser bones

    Step aerobics proved better than resistance exercises for building bone density.

    By Janet Raloff
  3. Planetary Science

    Comet mission loses some focus

    A camera aboard the Deep Impact spacecraft, set to fire a projectile into the icy heart of Comet Tempel-1 on July 4, is slightly out of focus.

    By Ron Cowen
  4. Earth

    Balloons, condoms release likely carcinogens

    Balloons and condoms that come in contact with body fluids discharge chemicals suspected of being human carcinogens.