- 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..
- The surface area of a brick is 79 cm squared.
- A giraffe can clean its ears with its 21 inch tongue.
- Dairy products account for 29% of all food consumed in the U.S..
- There are over 130 species of owl.
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