Where is it in nature?

The Golden Ratio has been found throughout nature. For example the ratios between your fingertip and middle knuckle and the hand and forearm approximates the Golden Ratio (1:1.618).
Also this ratio can be found in plants. The angle between leaves on a stem in some plants is the Golden Angle (The Golden Ratio of 360° which is 137.5077°.). In in my simulation of the Fibonacci Spiral used the Golden angle to simulate nature.