- A shark's teeth are literally as hard as steel.
- A flea can jump 350 times its body length.
- Powerful earthquakes can make the Earth spin faster.
- A crocodile can't move its tongue.
- Wearing headphones for just an hour will increase the bacteria in your ear by 700 times.
- Ombrophobia is the fear of rain.
- The first taxi service began in New York in 1907.
- A group of kangaroos is called a mob.
- Snails take the longest naps with some lasting as long as three years.
- The word racecar can be spelled the same way backwards.
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