- Mapping is older than writing.
- Crocodiles never outgrow their enclosure.
- Madonna and Michael Jackson were both born in 1958.
- 11% of people are left handed.
- A pearl can be dissolved by vinegar.
- In Switzerland, it is illegal to own only one guinea pig because they are prone to loneliness.
- The 'black box' that houses an airplanes voice recorder is actually orange so it can be more easily detected amid the debris of a plane crash.
- Ferrets sleep between 18 - 20 hours a day.
- Diamonds are the hardest natural substance.
- The average person swallows 295 times during a meal.
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