A jackrabbit can travel more than 12 feet in one hop.

In 1978, the World Water Speed record was made by Ken Warby from Australia. His average speed was 317.6 mph, and his jet-powered hydroplane was 27 feet long called "Spirit of Australia." Warby built the boat himself in his back yard.

Oil tycoon, John D. Rockefeller, was the world's first billionaire.

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