- Dolphins sleep with one eye open.
- The spikes of a newborn hedgehog begin to appear within 24 hours.
- The hamburger was invented in 1900.
- The numerical digits we use today such as 1, 2 and 3 are based on the Hindu-Arabic numeral system developed over 1000 years ago.
- A sneeze can travel up to 99 mph.
- Coffee represents 75% of all the caffeine consumed in the US.
- The Statue of Liberty features 7 points in her crown- one for each of the continents.
- According to manufacturer Spalding the average lifespan of an NBA basketball is 10,000 bounces.
- Tachophobia is the fear of speed.
- Hippopotamus milk is pink.
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