- The electric toothbrush was invented in 1939.
- One is the only number with letters in reverse alphabetical order.
- Emus can't walk backwards.
- A group of geese is called a gaggle.
- Termites eat through wood 2 times faster when listening to rock music.
- A bear has 42 teeth.
- You can buy square watermelons in Japan (developed to stack better in supermarkets).
- A human brain weighs around 3 pounds.
- In 1872 Yellowstone in the US was the world's first national park.
- You are 1% shorter in the evening than you are in the morning.
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