- A crocodile cannot move its tongue.
- Kangaroos cannot jump without their tails touching the ground.
- 40% of Amsterdam commuters get to work by bicycle.
- Wine is sold in tinted bottles because it spoils when exposed to light.
- Along with arithmetic, geometry was one of the two fields of pre-modern mathematics.
- Fish can cough.
- That after petrol, coffee is the largest item bought and sold.
- Dolphins can hear underwater sounds from 24km (15miles) away.
- Paper money was first used in China.
- 72% of people eavesdrop.
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