Tuesday 22 November 2016

Fibonacci in Animals



The shell of the chambered Nautilus has Golden proportions. It is a logarithmic spiral.


The eyes, fins and tail of the dolphin fall at Golden sections along the body.


A starfish has 5 arms.  (5 is the 5th Fibonacci number)


If a regular pentagon is drawn and diagonals are added, a five-sided star or pentagram is formed. Where the sides of the pentagon are one unit in length, the ratio between the diagonals and the sides is Phi, or the Golden Ratio. This five-point symmetry with Golden proportions is found in starfish.


Humans exhibit Fibonacci characteristics, too. The Golden Ratio is seen in the proportions in the sections of a finger.



It is also worthwhile to mention that we have 8 fingers in total, 5 digits on each hand, 3 bones in each finger, 2 bones in 1 thumb, and 1 thumb on each hand.
The ratio between the forearm and the hand is the Golden Ratio!


The cochlea of the inner ear forms a Golden Spiral.


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