The difference between antlers and horns is that antlers are shed each year and are made of bone while horns are kept for life and are made of living tissue and bone with a sheath that is very similar to human finger nails.
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The faster a kangaroo hops, the less energy it burns!
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An elephant's tooth can weigh as much as 12 pounds.
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There are over 58 million dogs in the U.S!
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The most powerful electric eel is found in the rivers of Brazil, Columbia, Venezuela, and Peru, and produces a shock of 400-650 volts.
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Lurch, a Watusi bull, had the largest horns in the world.
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