- The number Pi (the ratio of the circumference to the diameter of a circle) can't be expressed as a fraction, making it an irrational number. It never repeats and never ends when written as a decimal.
- Tarantula spiders can survive 2 and a half years without food.
- Macadamia nuts are toxic to dogs.
- On average you blink 25,000 a day.
- The only letter which doesn't appear in the Periodic Table is j.
- Cheetahs can accelerate from 0 to 70 km/h (43mp/h) in 3 seconds.
- A bumble bee flaps its wings at 160 times a second.
- Half of all crimes are committed by people under the age of 18.
- Before 1913 parents could mail their kids to Grandma's through the postal service.
- The Bee Hummingbird weighs less than a penny.
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