- The electric toothbrush was invented in 1939.
- The first paperback book was printed by Penguin Publishing in 1935.
- When the moon is directly overhead, you weigh slightly less.
- One is the only number with letters in reverse alphabetical order.
- Shrimps are all born male but slowly grow into females.
- The longest possible eclipse of the sun is 7.31 minutes.
- Baby koalas are fed poo by their parents after they are born which helps them digest Eucalyptus leaves later in life.
- 1/4 of the bones in your body are in your feet.
- You can tell what a narwhal has eaten each year based on the layers of its tusk.
- Female condors lays a single egg once every 2 years.
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