- Your skin is the largest organ making up the human body.
- Caterpillars have over 2,000 muscles.
- The atomic symbol for iron is Fe (the original name for iron was Ferric).
- An average person will spend 25 years asleep.
- Only female mosquitoes bite.
- Hippopotamuses have skin 3.8cm (1.5in) thick.
- There are more fake than real flamingos.
- The Sun has a diameter of 1,390,176km (864,000miles).
- Only 4 out of 20,000 species of bees produce honey.
- England's Stonehenge is over 5,000 years old.
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