- The algae found in the world's oceans produces nearly 50% of the world's oxygen.
- An elephant's trunk can hold over 5 litres of water.
- There is enough petrol in a full tank of a Jumbo Jet to drive the average car 4 times around the world.
- A cats urine glows under a blacklight.
- Before 1863 the postal service in the US was free.
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