Fibonacci Sequence | Definition, Golden Ratio & Examples

What Is the Fibonacci Sequence?

There’s hidden math inside every pine cone — the same pattern found in flowers, seashells, and even galaxies. 🌲✨ It’s called the Fibonacci sequence, a series of numbers where each one is the sum of the two before it: 0, 1, 1, 2, 3, 5, 8, 13… As plants grow, new parts form at the golden angle — about 137.5° from the previous one — spacing each scale, petal, or seed just far enough apart for maximum efficiency and light. In pine cones, that creates interlocking spirals of Fibonacci numbers like 8

A series of pine cones lined up, each one displaying the unmistakable spiral pattern seen in the Fibonacci sequence.

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

The Fibonacci Sequence in Nature • Insteading

The Fibonacci Sequence Is Everywhere—Even the Troubled Stock Market