Uncategorized

  1. Humans

    Taking trophy heads close to home

    Members of the prehistoric Nasca culture in southern Peru took trophy heads from their own people rather than from foreigners captured in wars or raids, a new biochemical analysis suggests.

    By Bruce Bower
  2. Earth

    Corals, turfgrass and sediments offer stories of climate past and future

    Science News reports from San Francisco at the fall meeting of the American Geophysical Union

    By Sid Perkins
  3. Health & Medicine

    For preemies, less is more

    Multiple courses of steroid treatment for mom could harm premature babies.

    By Laura Sanders
  4. Health & Medicine

    EPA should test demasculinizing pollutants collectively, NRC says

    Cumulative effects of phthalates and related compounds likely larger than effects measured one chemical at a time, reports a National Research Council panel.