News

  1. Anthropology

    Stone Age Role Revolution: Modern humans may have divided labor to conquer

    A new analysis of Stone Age sites indicates that a division of labor first emerged in modern-human groups living in the African tropics around 40,000 years ago, providing our ancestors with a social advantage over Neandertals.

    By Bruce Bower
  2. Tech

    Crusty Old Computer: New imaging techniques reveal construction of ancient marvel

    Scientists have figured out the arrangement and functions of nearly all the parts of a mysterious astronomical computer that was recovered from a 2,000-year-old shipwreck.

    By Peter Weiss
  3. Earth

    Lead in the Water: Mapping gets a handle on disinfectant’s danger

    Researchers are investigating the link between lead-contaminated water and chloramine, a chemical disinfectant that is increasingly used in municipal water supplies.