Why do the number of spirals in a sunflower match up with the integers 34, 55, 89 and 144—numbers found in the famous Fibonacci sequence? Scientific American editor John Matson explains in our latest Instant Egghead video:

More to explore:

What Is the Fibonacci Sequence?

Turing's Sunflowers


Video credits:

Written & presented by John Matson

Motion design by Joss Fong

Produced & edited by Eric R. Olson