News

  1. Humans

    Ancient hominid had an unusual diet

    A long-extinct member of the human evolutionary family had an uncommon taste for grasses and sedges.

    By Bruce Bower
  2. Life

    Telomere length linked to risk of dying

    Large study examines association between protective caps at end of chromosomes and health.

    By Tina Hesman Saey
  3. 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
  4. 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
  5. Humans

    An ancient civilization’s wet ascent, dry demise

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