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  1. Maternal care may leave brain legacy

    Rat experiments indicate that mothers' licking and grooming of offspring induces biological changes in female pups that in turn regulate their maternal behavior as adults.

    By Bruce Bower
  2. Earth

    Photo Treasures

    The National Oceanic and Atmospheric Administration offers an amazing library of more than 16,000 spectacular images, organized into a variety of topical sets. You can browse image collections devoted to coastlines, fisheries, ships, polar regions, severe storms, undersea research, nature reserves, flight, geodesy, coral reefs, and many other subjects. Go to: http://www.photolib.noaa.gov/ .

    By Science News

  3. From the October 31, 1931, issue

    CATS WERE WILD IN ANCIENT SOUTHWEST In ancient America, it was bad luck to meet a cat on a dark night.