- Tennis was originally played with bare hands.
- Bats are the only mammals that fly.
- Crocodiles are responsible for over a 1,000 deaths each year by the Banks of the Nile river.
- 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..
- Sharks never stop moving even when they sleep or rest.
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