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  1. Plants

    Micro Sculptors

    Snippets of RNA that control biochemical reactions by squelching the creation of specific proteins play a role in the development of leaves.

    By Kate Ramsayer
  2. Humans

    Letters

    Letters from the Nov. 15, 2003, issue of Science News.

    By Science News
  3. Humans

    Everyday Mysteries

    Why do onions make you cry? What causes the noise when you crack a joint? How does sunscreen work? The Library of Congress offers “everyday mysteries” Web pages devoted to answering such questions. The archive includes responses to questions in a wide range of fields, from anthropology to zoology. Go to: http://www.loc.gov/rr/scitech/mysteries/archive.html

    By Science News
  4. Humans

    From the November 4, 1933, issue

    WEIGHT LOSS FOUND TO BE CLUE TO PERSONALITY TYPE A new link between the mind and the body has been described to psychologists in a report by Dr.