News

  1. Health & Medicine

    Healing the heart from within

    An unusual mouse strain can regenerate heart tissue when the organ is damaged.

    By John Travis
  2. Health & Medicine

    Stem cell research marches on

    Cells from human embryos can be transformed into heart cells or insulin-secreting cells.

    By John Travis
  3. Paleontology

    Completing a titan by getting a head

    When paleontologists unearthed the skeleton of a 70-million-year-old titanosaur in Madagascar in the late 1990s, they also recovered something that had been missing from previous such finds: a skull that matched the body.

    By Sid Perkins
  4. Paleontology

    That’s no footprint, it’s got no toes

    The impressions near Isona, Spain, long thought to be fossilized dinosaur footprints may actually record the feeding behavior of stingrays.