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  1. Return of a Castaway

    Wood-eating shipworms have been forging a costly comeback in some U.S. harbors in recent years, yet researchers say that these mislabeled animals (they're clams, not worms) are a scientific treasure.

    By Kristin Cobb
  2. Math

    Home Runs and Ballparks

    When baseball slugger Mark McGwire of the St. Louis Cardinals hit his record-breaking, 62nd home run on Sept. 8, 1998, the ball barely passed over the left field fence at Busch Stadium in St. Louis. The same hit would not have been a home run at, say, Fenway Park in Boston. This episode suggests an […]

    By Ivars Peterson
  3. Math

    Home Runs and Ballparks

    When baseball slugger Mark McGwire of the St.