News

  1. Archaeology

    Ancient South Americans tasted chocolate 1,500 years before anyone else

    Artifacts with traces of cacao push back the known date for when the plant was first domesticated by 1,500 years.

    By Bruce Bower
  2. Chemistry

    Zapping substances with electrons can quickly map chemical structures

    Speedy molecular identification originally developed for proteins might benefit crime lab researchers and drugmakers.

    By Carmen Drahl
  3. Health & Medicine

    What the approval of the new flu drug Xofluza means for you

    Xofluza, the first flu antiviral to be approved in 20 years, works differently from other flu drugs.

    By Aimee Cunningham
  4. Paleontology

    The first vertebrates on Earth arose in shallow coastal waters

    After appearing about 480 million years ago in coastal waters, the earliest vertebrates stayed in the shallows for another 100 million years.