- The hardest substance in the human body is enamel.
- 3 teaspoons make up 1 tablespoon.
- There are exactly 1,048,576 bytes in 1 megabyte.
- The air signs are Gemini, Libra, and Aquarius.
- Snakes can't bite in rivers or swamps (they would drown otherwise).
- The ancient Greeks first grew carrots as a form of medicine and not a food.
- The average person laughs 10 times a day.
- Reindeer hair is hollow inside like a tube.
- Giraffes have no vocal cords.
- Diamonds are the hardest natural substance.
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