Uncategorized

  1. Health & Medicine

    Messy Mix? Combined vaccine yields fewer antibodies

    Some common childhood vaccines don't seem to work as well when administered with, or at the same time as, other vaccines.

    By Nathan Seppa
  2. Paleontology

    Egg-Citing Discovery: Dinosaur fossil includes eggshells

    The first-ever find of shelled eggs inside a dinosaur fossil bolsters ideas about the reptiles' reproductive physiology.

    By Sid Perkins
  3. Humans

    Letters from the April 16, 2005, issue of Science News

    Ax questions, hard answers Another hypothesis for the polish on the Stone Age corundum ax head is that the Stone Age people never had absolutely pure corundum, which indeed would have required diamond to polish (“In the Buff: Stone Age tools may have derived luster from diamond,” SN: 2/19/05, p.