- There are over 97,000 km (60,000 miles) of blood vessels in the average person.
- Emus can't walk backwards.
- The diameter of Earth is 12,756 km (7,926 miles).
- The average pool cue is 1.4m (4.75ft) long.
- Dendrophobia is the fear of trees.
- The lie detector was invented in 1921.
- 10% of with world's food supply is consumed by insects.
- There are over 320 species of parrots.
- The state of Alabama once financed the construction of a bridge by holding a rooster auction.
- Babylonians measured the circumference of a circle as approximately 3 times the diameter, which is fairly close to today's measurement which uses the value of Pi (around 3.14).
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