- Sea otters hold each other's paws while sleeping so they don't drift apart.
- A cat's nose is ridged with a unique pattern, just like a human fingerprint.
- A day on Venus lasts longer than a year on Venus.
- In 1872 Yellowstone in the US was the world's first national park.
- The most popular snack food is potato chips.
- Ostriches have a 14 meter (46 foot) long small intestine.
- The surface of Mars is covered in rust, making the planet appear red.
- Rats and mice are ticklish, and even laugh when tickled.
- Wind moves air from high to low pressure areas.
- The human body of a 70 kg person contains 0.2mg of gold.
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