- To crack a whip the tip must be travelling faster than the speed of sound.
- The only thing that can destroy a diamond is intense heat.
- The US is the world's largest consumer of coffee.
- Snakes can't bite in rivers or swamps (they would drown otherwise).
- Your most active muscles are in your eye.
- The most commonly forgotten item for travelers is their toothbrush.
- The collective name for a group of unicorns is called a blessing.
- Bats are the only mammals that fly.
- Spain's largest source of income is from tourism.
- Jellyfish have been on Earth for over 650 million years.
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