Uncategorized

  1. Climate

    Climate change stifling lemmings

    Warmer winter temperatures are altering the snowpack, squelching the rodents’ population booms.

    By Sid Perkins
  2. Health & Medicine

    Vitamins don’t alter cancer risk

    Taking supplemental folate and other B vitamins doesn’t raise or lower the risk of cancer in women.

    By Nathan Seppa
  3. Chemistry

    Oldest evidence for complex life in doubt

    Chemical biomarkers in ancient Australian rocks, once thought to be the oldest known evidence of complex life on Earth, may have infiltrated long after the sediments were laid down, new analyses suggest.

    By Sid Perkins
  4. Archaeology

    An ancient healer reborn

    A research team in Israel has uncovered one of the oldest known graves of a shaman.