- Even with wings, humans would be unable to fly.
- Dogs sweat through the pads on their feet.
- A group of kangaroos is called a mob.
- Different names for the number 0 include zero, nought, naught, nil, zilch and zip.
- The name of the popular search engine 'Google' came from a misspelling of the word 'googol', which is a very large number (the number one followed by one hundred zeros to be exact).
- Spiders are arachnids and not insects.
- There are more chickens than people.
- Toilets use 35% of indoor water use.
- The algae found in the world's oceans produces nearly 50% of the world's oxygen.
- Christmas trees originated from Germany.
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