- More people are killed by hippopotamuses then by lions, elephants and water buffalos combined.
- More than 1,000,000 Earths could fit inside the Sun.
- Paper money was first used in China.
- 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.
- An ostrich's eye is bigger than its brain.
- The Sun has a diameter of 1,390,176km (864,000miles).
- Months that start on a Sunday will always have a Friday the 13th.
- Ostriches don't bury their heads in sand.
- The only continent without reptiles or snakes is Antarctica.
- Platypuses are venomous.
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