- An iguana can stay under water for 28 minutes.
- No two lip impressions are the same.
- The Bee Hummingbird weighs less than a penny.
- Italian mathematician Leonardo of Pisa (better known as Fibonacci) lived between the years 1170 and 1250 and is best known today for Fibonacci numbers, the number sequence named after him. Fibonacci introduced the number sequence to Western Europe in his book 'Liber Abaci' after they had been described earlier by Indian mathematicians.
- The bullfrog is the only animal that never sleeps.
- Commercial airplanes maintain a cabin pressure of about 6,400 feet (just over 1 mile) above sea level.
- The only one-syllabled U.S. state is Maine.
- Lemons contain more sugar than strawberries.
- A nanosecond is one billionth of a second.
- When grazing or resting, cows tend to align their bodies with the magnetic north and south poles.
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