- Britain was the first country to use postage stamps.
- A cat uses its whiskers to determine if a space is too small to squeeze through.
- Agoraphobia is the fear of wide open spaces.
- An arrow frog has enough poison to kill over 2,200 people.
- Humans share 50% of their DNA with bananas.
- The number of times a cricket chirps in 15 seconds, plus 37, will give you the current air temperature.
- Hawaii is the only U.S. state never to report a temperature of zero.
- The average person laughs 10 times a day.
- The aphid insect is born pregnant.
- The first toothbrush was invented in 1498.
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