News

  1. Life

    Stem cell treatment spurs cartilage growth

    A small molecule called kartogenin prompts the manufacture of lost connective tissue in mice.

    By Nathan Seppa
  2. Paleontology

    T. rex has another fine, feathered cousin

    A trio of fossils from China may tip the scales on dinosaurs’ public image.

    By Rebecca Cheung
  3. Life

    Fruit fly biorhythms differ indoors and out

    Response to daily cues of real life suggest lab findings may need a second look.

    By Susan Milius
  4. Psychology

    Autism rates rise again

    Related developmental disorders affect 1.1 percent of U.S. 8-year-olds.

    By Bruce Bower
  5. Life

    Genes are no crystal ball for disease risk

    For most conditions, knowing a person’s entire genetic makeup won’t help predict his or her medical history.