News

  1. Anthropology

    The way hunter-gatherers share food shows how cooperation evolved

    Camp customs override selfishness and generosity when foragers divvy up food, a study of East Africa’s Hazda hunter-gatherers shows.

    By Bruce Bower
  2. 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
  3. 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
  4. Life

    Humans have skeletal stem cells that help bones and cartilage grow

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