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  1. Coral Reef Report

    Coral Reef Report is a new online magazine that aims to “celebrate the power and mystery of the planet’s coral reefs.” It features articles, personal stories, audio interviews, photo galleries, news items, and other materials devoted to exploring and elucidating the beauty of coral reefs. Go to: http://coralreefreport.info/

    By Science News
  2. Math

    Deriving the Structure of Numbers

    A novel mathematical function called the number derivative offers new insights into the structure of integers.

    By Ivars Peterson
  3. Humans

    Letters from the March 20, 2004, issue of Science News

    What’s the difference? I thought that the X and Y chromosomes determined gender in animals, but I see no mention of them in “When to Change Sex” (SN: 1/17/04, p.