- Horses can't vomit.
- Macadamia nuts are toxic to dogs.
- Each red blood cell lives an average of 4 months and travels between the lungs and other tissue 75,000 times before returning to bone marrow to die.
- Swiss mathematician Leonhard Euler was probably the most influential mathematician of the 18th century, making discoveries in graph theory and introducing many modern mathematical words and notations among other things.
- About 1/3 of your taste buds are numbed while flying.
- Tug-of-war was an Olympic sport in the early 1900s.
- Every living thing on the Earth contains carbon.
- 32% of all land in the U.S. is owned by the government.
- When baby polar bear cubs are born they cannot see or hear for their first month.
- Europe is the only continent without a desert.
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