- The opposite of a 'vacuum' is a 'plenum'.
- Rats and mice are ticklish, and even laugh when tickled.
- There are over 2,500 different types of mushrooms.
- The Moons diameter is 3,476km.
- The middle finger has the fastest growing nail.
- A bolt of lightning can reach roughly 50,000 degrees Fahrenheit.
- The basic arithmetic operations used in mathematics are addition, subtraction, multiplication and division.
- Coffee trees produce its first full crop after 5 years old.
- A crocodile can't stick out its tongue.
- The Cookie Monster's real first name is Sid.
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