Uncategorized

  1. Health & Medicine

    Stem cell research marches on

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

    By John Travis
  2. 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
  3. 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.

    By Sid Perkins
  4. Animals

    Big woodpeckers trash others’ homes

    Pileated woodpeckers destroy in an afternoon the nesting cavities that take endangered red-cockaded woodpeckers 6 years to excavate.