News

  1. Anthropology

    These spines were made for walking

    A new analysis of fossil backbones indicates that human ancestors living around 3 million years ago were able to walk much as people today do.

    By Bruce Bower
  2. 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
  3. Health & Medicine

    Step up to denser bones

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

    By Janet Raloff
  4. 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.