- Caterpillars have over 2,000 muscles.
- Polar bears can smell a seal from 20 miles away.
- There are over 2,500 apple varieties grown in the U.S.
- A very small raindrop can travel up to 7 minutes from the sky before reaching you.
- The hamburger was invented in 1900.
- Your fingernails grow faster when you are cold.
- The numerical digits we use today such as 1, 2 and 3 are based on the Hindu-Arabic numeral system developed over 1000 years ago.
- A honeybee's top speed is 24kph (15mph).
- Rubber bands last longer when kept refrigerated.
- Sir Isaac Newton was 23 when he discovered the law of gravity.
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