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?
Written & presented by John Matson
Motion design by Joss Fong
Produced & edited by Eric R. Olson