The Fibonacci sequence.

Nature and Math: The Fibonacci Sequence - Herbert F. Johnson Museum of Art

Fibonacci's Rose - Stunning and Delicate.. Perfect for any room or as a birthday, housewarming, wedding, or other special occasion gift.

6 Fascinating Places to See the Fibonacci Sequence

The Fibonacci Sequence in Nature • Insteading

Why Does the Fibonacci Sequence Appear So Often in Nature?

The Fibonacci Sequence Is Everywhere—Even the Troubled Stock Market