- Chalk is made from tiny plankton fossils.
- Cats can jump up to 7 times their tail length.
- The expression to 'knuckle down' originated from playing marbles (players used to put their knuckles to the ground for their best shots).
- A person will die from total lack of sleep sooner than from starvation (Death can occur about 10 days without sleep while starvation takes a few weeks).
- Toilets use 35% of indoor water use.
- The middle finger has the fastest growing nail.
- The 50-star flag was designed for a high school class assignment.
- The ice cream cone was introduced in 1904.
- Cats spend 66% of their life asleep.
- A group of goats is called a trip.
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