The heads of sunflowers consist of lots of flowers — 1,000 to 2,000 of them — arranged in spirals. There are typically 34 spirals in one direction and 55 in the other, but for large sunflowers, there are 89 spirals in one direction and 144 in the other. If those numbers seem familiar, it’s because they are Fibonacci numbers.
(Photo via Wikimedia Commons)
This is the second time I’ve encountered the Fibonacci numbers in recent days. One more time and I’ll begin to wonder.