News

  1. Anthropology

    Hobbit foot, hippo skulls deepen ancestral mystery

    Hobbit fossils pose puzzling evolutionary questions for scientists in two new studies, one of hobbit foot bones and another of brain size in extinct pygmy hippos.

    By Bruce Bower
  2. Physics

    Molecule turns red at breaking point

    Materials made with a color-changing molecule may offer a red signal when under stress.

    By Laura Sanders
  3. Life

    Portuguese trove of trilobite fossils

    Fossils include largest known trilobite specimen and groups of the ancient arthropods caught in the act of molting and spawning.

    By Sid Perkins
  4. Health & Medicine

    Keeping artery plaques under control

    Toning down a gene called CHOP may offer a way to reduce the risk of arterial plaque ruptures, which can cause heart attacks and strokes, a study in mice shows.