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. -- WATCH more Instant Egghead: SUBSCRIBE to our channel: VISIT for the latest science news: -- More to explore: What Is the Fibonacci Sequence? Turing's Sunflowers -- Video credits: Written & presented by John Matson Motion design by Joss Fong Produced & edited by Eric R. Olson Help us caption & translate this video!