- It takes around 200 muscles to take a step.
- Warthogs can reach speeds of 48km/h (29mph).
- 20% of all the oxygen you breathe is used by your brain.
- Kangaroos can not walk backwards.
- Dinosaurs lived on Earth for over 165 million years before they became extinct.
- To crack a whip the tip must be travelling faster than the speed of sound.
- A Boeing 747 airliner holds 216,847 litres (57,285 gallons) of fuel.
- The Statue of Liberty features 7 points in her crown- one for each of the continents.
- Flightless birds, like the penguin, could once fly.
- A group of kangaroos is called a mob.
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