- Men have 10% more red blood cells than women.
- Brazil covers 50% of the South American continent.
- A group of goats is called a trip.
- Pigs can get sunburn.
- Clothes dried outside smell better because of a process called photolysis (sunlight breaks down compounds that cause odor).
- The world's biggest pyramid is not in Egypt, but in Mexico.
- Snakes can't bite in rivers or swamps (they would drown otherwise).
- Human eyes have over two million working parts.
- The US shreds 7,000 tons of worn out currency each year.
- Mountain lions can whistle.
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