- Hippopotamus milk is pink.
- When recognising a persons face you use the right side of your brain.
- Sound travels 15 times faster through steel than air.
- Powerful earthquakes can make the Earth spin faster.
- The average raindrop weighs less than an eyelash.
- An electric eel can release a charge powerful enough to start 50 cars.
- 90% people depend on alarm clocks to wake up.
- There is no sound in space.
- Armadillos have 4 babies at a time and are all the same sex.
- 99% of our solar system's mass is the sun.
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