An evergreen example of the Fibonacci spiral. | ricky4444/iStock via Getty Images. Many flowers have petals that add up to Fibonacci numbers, including buttercups, daisies, marigolds, delphiniums ...

Pineapples are often named as an example of the Fibonacci sequence in fruits, thanks to the spiraling patterns that each bulb within a pineapple fruit creates. One study in 1978 has found that while ...