The mathematical 'golden ratio' is another pattern:-http://m.phys.org/news/2014-11-golden-ratio-unity-science.html-"It is said to represent a "cosmic constant" found in the curvature of elephant tusks, the shape of a kudu's horn, the destructive beauty of Hurricane Katrina, and in the astronomical grandeur of how planets, moons, asteroids and rings are distributed in the solar system, to name but a few. -"Now, researchers from the Universities of the Witwatersrand and Pretoria are also suggesting that the "Golden Ratio" - designated by the Greek symbol ? (letter Phi) with a mathematical value of about 1.618 - also relates to the topology of space-time, and to a biological species constant (T)."