- The hardest substance in the human body is enamel.
- Your tongue is the fastest healing part of your body.
- Frogs don't usually swallow water (they absorb most of the moisture they need through their skin).
- Folklore states that if you split a double strawberry in half and share it with the opposite sex, you'll soon fall in love.
- Female condors lays a single egg once every 2 years.
- The Fibonacci sequence: 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, ....
- Cheetahs can accelerate from 0 to 70 km/h (43mp/h) in 3 seconds.
- 'fan' is short for 'fanatic'.
- An egg contains every vitamin except vitamin C.
- The average koala sleeps 22 hours each day.
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