Spirals in nature have a lot in common: Most of them are shaped like this nautilus shell.
Pine cones, flowers and hurricanes follow this same spiral pattern. Did you know they’re described by Fibonacci numbers?
On Throw Back Thursday have fun with spirals in this vintage article: Fibonacci.
(photo credits: flower and pine cone by Kate St. John, shell and hurricane from Wikimedia Commons; click on the captions to see the originals)