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: http://goo.gl/CkXwKj SUBSCRIBE to our channel: http://goo.gl/fmoXZ VISIT ScientificAmerican.com for the latest science news: http://goo.gl/lHq0CH -- More to explore: What Is the Fibonacci Sequence? http://www.scientificamerican.com/article/what-is-the-fibonacci-sequence/?WT.mc_id=SA_sciamerican_meta Turing's Sunflowers http://www.scientificamerican.com/citizen-science/turings-sunflowers/?WT.mc_id=SA_sciamerican_meta -- Video credits: Written & presented by John Matson Motion design by Joss Fong Produced & edited by Eric R. Olson Help us caption & translate this video! http://amara.org/v/DgDC/