News

  1. Health & Medicine

    Drug overdose deaths in America are rising exponentially

    Tracking rising numbers of deaths from a variety of drugs over the past 38 years shows that it isn’t just an opioid problem.

    By Aimee Cunningham
  2. Paleontology

    Cholesterol traces suggest these mysterious fossils were animals, not fungi

    Traces of cholesterol still clinging to a group of enigmatic Ediacaran fossils suggests the weird critters were animals, not fungi or lichen.

    By Carolyn Gramling
  3. Life

    Humans have skeletal stem cells that help bones and cartilage grow

    Human skeletal stem cells have been found for the first time.

    By Tina Hesman Saey
  4. Life

    DNA from seized elephant ivory unmasks 3 big trafficking cartels in Africa

    Scientists can sleuth out wildlife crime and aid law enforcement by tracing elephant DNA from ivory seizures back to the source.