Uncategorized

  1. Boning Up: Tissue for grafts grown inside the body

    Scientists have discovered a new way to stimulate one part of an animal's body to grow extra bone tissue that can be transplanted elsewhere.

    By Christen Brownlee
  2. Paleontology

    Young and Helpless: Fossils suggest that dinosaur parents cared

    Skeletal remains found in the fossilized eggs of an early dinosaur hint that adults of the species may have cared for their hatchlings.

    By Sid Perkins
  3. Animals

    Wing Ding: Bird rubs feathers for cricketlike song

    Scientists say that they have found the first vertebrate to make its courtship music in the same way as a cricket does.

    By Susan Milius
  4. Physics

    Glints from Inner Space: Sensing Earth’s hidden radioactivity

    Physicists have observed signatures of radioactivity deep within Earth, enabling measurement of planet-wide thorium and uranium quantities.