- Laughing lowers levels of stress and strengthens your immune system.
- If left in the dark, goldfish may turn a whitish color.
- Isaac Newton invented the cat door.
- Siderodromophobia is the fear of trains.
- Mexican jumping beans jump to get out of sunlight.
- Elephants communicate in sound waves below the frequency that humans can hear.
- Most birds eat twice their body weight each day.
- A pelican can hold more food in its beak than its belly.
- Your head contains 22 bones.
- Hawaii is the only state with one school district.
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