ABC News - 2/19/13, Lee Reich/Associated Press
This undated photo shows a spruce cone with a marked fibonacci number sequence. A numbers sequence thought up by the 13th century Italian mathematician known as Fibonacci plays out in plants, from pine cones to pineapples. (AP Photo/Lee Reich)
What do pine cones and paintings have in common? A 13th century Italian mathematician named Leonardo of Pisa.
Better known by his pen name, Fibonacci, he came up with a number sequence that keeps popping up throughout the plant kingdom, and the art world too.
To read the rest of this story, visit ABC News.