How can we tell if frogs jump further?

摘要

IN CALAVERAS COUNTY, CALIFORNIA, frog jumping has been an annual event since 1928. The event grew out of a story by Mark Twain, of a famous jumping frog (4). In the story, Jim Smiley trained his frog to jump, and laid a bet that it would win. The jump and the wager were foiled by a stranger who fed the frog with lead pellets. The current record in Calaveras, by Rosie the Ribeter, stands at 6547 mm. Thousands of frogs take part each year in the Calaveras competition. Figure 1 shows 2500 imaginary overall results representing what may have been observed at Calaveras in 1986.