- Porsche also builds tractors.
- The greyhound is the fastest dog and can reach speeds of up to 72kph (45mph).
- The drinking straw was invented in 1886.
- Red blood cells are produced in bone marrow.
- Rain contains vitamin B12.
- The average porcupine has 30,000 spikes.
- Household dust is made of dead skin cells.
- The makers of the board game Monopoly print over 50 billion dollars worth of Monopoly money every year.
- Labor Day is the unofficial end of hot dog season.
- Green tea has 50% more vitamin C than black tea.
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