- The ostrich produces a booming noise, often confused with a lion roar.
- A day on Venus lasts longer than a year on Venus.
- There is a 50% chance that in a group of 23 people, two will share the same birthday. In a group of 367 people, it is a 100% chance. But only 70 people are required for a 99.9% chance.
- EMI awards stands for 'Electrical and Musical Instruments'.
- Air's alchemy symbol is a triangle with a horizontal bar.
- Sharks can sense a drop of blood from 4km (2.5miles) away.
- India has the most post offices than any other country (over 100,000).
- Camels can drink 94 litres (25 gallons) of water in less than 3 minutes.
- The average age at which America's presidents have taken office is 54.
- The oldest cockroach fossils are over 280 million years old.
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