- The first paperback book was printed by Penguin Publishing in 1935.
- A whip makes a cracking sound because its tip moves faster than the speed of sound.
- Salt used to be a currency.
- The D.C. in Washington D.C. stands for District of Columbia.
- 45% of people use mouthwash daily.
- Blonde beards grow faster than darker beards.
- The largest living organism in the world is a fungus. It is in Oregon, covering 2,200 acres and is still growing.
- Dolphins are part of the whale family.
- Humans share 50% of their DNA with bananas.
- By age 60 most people would have lost half of their taste buds.
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