Geometry governs the growth of many creatures, especially in the sea, where pentagonal shapes are common. The logarithmic spiral is also instrumental in the growth of of other living things (such as the fetal development of many animals), but it is most obvious where a concrete form like a shell is left behind. The spiral whorls of many seashells or the Dall sheep‘s horn are case and point.
– from “Sacred Geometry – Deciphering the Code” by Stephen Skinner, Sterling Publishing, NY. ISBN 978-1-4027-6582-7
Fundy Contemplations... 