- Dolphins sleep with one eye open.
- Isaac Newton discovered the laws of physics and brought together many important concepts of infinitesimal calculus.
- Elvis's middle name was Aron.
- The Eiffel Tower has 1,792 steps.
- Chocolate manufacturers use 40% of the world's almonds.
- There are over 1,600 known species of starfishes.
- You can't hum while plugging your nose.
- Cats can jump up to 7 times their tail length.
- Employees of the Vatican pay no income tax.
- A rainbow can only be seen in the morning or late afternoon.
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