- A dolphins top speed is 60kmh (37mph).
- The term 'disc jockey' was first used in 1937.
- American's eat 18 billion hot dogs a year.
- Tennis was originally played with bare hands.
- 2 and 5 are the only prime numbers that end with a 2 or a 5.
- Women's hearts typically beat faster than men's hearts.
- There are over 225,000 trees in New York's Central Park.
- A shrimp's heart is in its head.
- The color of a chicken's earlobe is a good indicator of the color of the eggshell it will lay.
- The alchemy symbol for water is an inverted triangle, resembling a cup or glass.
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