- There are over 690 known species of bats.
- The frozen foods were first introduced in the 1920.
- Elephants communicate in sound waves below the frequency that humans can hear.
- You can tell the sex of a horse by its teeth (most males have 40, females 36).
- Coconuts kill over 150 people each year (more than sharks).
- The Chinese used fingerprints as a method of identification as far back as AD 700.
- 45% of Americans don't know that the sun is a star.
- Household dust is made of dead skin cells.
- 1 gigayear = 1,000,000,000,000 years.
- Hypnotism is banned in public schools in San Diego (U.S.).
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