- The 3 most common languages in the world are Mandarin Chinese, Spanish and English.
- The ostrich produces a booming noise, often confused with a lion roar.
- You can't tickle yourself.
- The average human drinks over 60,566 litres (16,000 gallons) of water in a lifetime.
- Australia was originally called New Holland.
- Hummingbirds can't walk.
- Melissophobia is the fear of bees.
- The word 'underground is the only word that begins and ends with the letters 'und'.
- Cows can walk up stairs but not down them.
- Dry ice transforms directly from being a solid to a gas.
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