- Reindeer hair is hollow inside like a tube.
- The fastest fish in the sea is the swordfish and can reach up to speeds of 108kph (68mph, 59knots).
- The diameter of the sun is 1,390,000km (865,000 miles).
- Shrimps are all born male but slowly grow into females.
- Cats are not able to taste anything that is sweet.
- The ideal temperature to fall asleep is between 18-30c (64-86f).
- Bees and house flies flap their wings 200 times a second.
- Coca-Cola originally contained cocaine.
- One brow wrinkle is the result of 200,000 frowns.
- Earth is the only planet not named after a god.
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