News

  1. Health & Medicine

    Infant stress linked to teen brain changes

    Girls, but not boys, showed later changes in brain regions that regulate emotions.

    By Laura Sanders
  2. Life

    Rare genetic tweaks may not be behind common diseases

    Variants thought to be behind inherited conditions prove difficult to pin down.

    By Tina Hesman Saey
  3. Humans

    An ancient civilization’s wet ascent, dry demise

    Cave data suggest that ancient rainfall patterns swayed the course of Classic Maya societies.

    By Bruce Bower
  4. Life

    Seaweed-threatened corals send chemical SOS to fish

    The cry for help summons allies to graze away the algal overgrowth.

    By Susan Milius
  5. Chemistry

    Hydrogen fuel edges a step closer

    A new chemical setup creates clean-burning gas by mimicking plant photosynthesis.