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Macintosh Picture Format  |  1996-09-10  |  11.0 KB  |  640x40  |  4-bit (8 colors)
   ocr: Scorpions, like spiders, are in the class Arachnida, but the second pair of their limbs are pincerlike claws. The oldest known arachnid fossill, dating back some 400,000 years, is a scorpion. (Photo by B. Kaston)