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  1. Math

    Manuscripts as Fossils

    A new mathematical model estimates how many medieval manuscripts have survived to the present.

    By Erica Klarreich
  2. Math

    Sea Shell Spirals

    The golden ratio doesn't figure into the spiral structure of the chambered nautilus shell.

    By Ivars Peterson
  3. Humans

    From the March 30, 1935, issue

    Dust storms over Washington, D.C., 300 successive generations of fruit flies, and the world's oldest cemetery.

    By Science News
  4. Humans

    Science Cartoons

    The science-themed cartoons of Sidney Harris have entertained readers of magazines ranging from American Scientist to The New Yorker for many years. You can find a selection of his delightful cartoons, organized by topic, in this Web gallery.