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  1. Animals

    Hide and See

    A new look at fish on coral reefs considers the possibility that all that riotous color has its inconspicuous side.

    By Susan Milius
  2. Humans

    Letters from the October 30, 2004, issue of Science News

    It isn’t academic Speaking as someone with a Ph.D. in math who has spent most of his 30-year professional life unemployed and who can probably look forward to spending the rest of it unemployable, I was disappointed that “Where Ph.D.s pay off” in (SN: 8/7/04, p. 94: Where Ph.D.s pay off) made no apparent effort […]

    By Science News
  3. Humans

    From the October 27, 1934, issue

    A large telescope lens made in Russia, artificial gamma rays from sodium, and acetylcholine revealed as message carrier for nerve cells.