- The golden ratio of approximately 1.618 between two quantities such as lengths often appears in nature (tree branching, uncurling ferns, pine cone arrangements etc) and has been used throughout history to create aesthetically pleasing designs and art works such as Leonardo da Vinci's Mona Lisa..
- Shrimps are all born male but slowly grow into females.
- The diameter of the sun is 1,390,000km (865,000 miles).
- A garfish has green bones.
- There are 2 credit cards for every person in the US.
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