- A blue whale's heart beats just twice a minute when it dives.
- The side of a hammer is called a cheek.
- There are more than 50 different kinds of kangaroos.
- 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.
- The vocabulary of the average person is between 5,000 to 6,000 words.
- 'Bookkeeper' and 'bookkeeping' are the only 2 words in the English language with three consecutive double letters.
- 'fan' is short for 'fanatic'.
- There are 21.
- Your foot and your forearm are the same length.
- A horse's canter is a 3-beat gait. After the third beat all three legs are off the ground.
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