- Brazil got its name from the Brazilian nut (not the other way around).
- 1/4 of the bones in your body are in your feet.
- Hippopotamuses have skin 3.8cm (1.5in) thick.
- Hippopotamuses are born under water.
- Swiss mathematician Leonhard Euler was probably the most influential mathematician of the 18th century, making discoveries in graph theory and introducing many modern mathematical words and notations among other things.
- 8.5 million tons of water evaporates from the Dead Sea every day.
- The grapefruit gets its name from the way it grows in clusters like grapes on a vine.
- There are 2 credit cards for every person in the US.
- Maine produces more toothpicks than any other state in the U.S.
- In 1872 Yellowstone in the US was the world's first national park.
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