- All the people on Earth could fit into a 1 km cube.
- New York's Central Park was opened in 1876.
- If a Donkey and a Zebra have a baby, it is called a Zonkey.
- The average person walks the equivalent of twice around the world in a lifetime.
- Dolphins are part of the whale family.
- Before 1863 the postal service in the US was free.
- The Nobel Peace Prize is named for Alfred Nobel, the inventor of dynamite.
- The moon orbits the Earth every 27.32 days.
- Blonde beards grow faster than darker beards.
- The only continent without reptiles or snakes is Antarctica.
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