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The Golden Spiral
When you draw squares with sides that follow the Fibonacci sequence (1, 1, 2, 3, 5, 8, 13...) and then draw a curve through the corners, you get a beautiful shape called the GOLDEN SPIRAL.
This spiral starts small and gets bigger and bigger, always growing in the same perfect proportion. And here is the mind-blowing part: this exact same spiral appears in NATURE over and over!
Nautilus shells grow in a golden spiral. As the animal inside gets bigger, it builds a new, larger chamber following this exact mathematical curve. The shell spirals outward perfectly.
Snail shells spiral the same way. Ram horns, elephant tusks, and even the way a fern frond uncurls (called a fiddlehead) all follow spiral patterns!