> From sunflower seeds to artichoke flowerings, many features in plants > follow patterns arranged in terms of Fibonacci numbers: 1, 2, 3, 5, > 8, 13? (each number is the sum of the previous two). Research has > established that these patterns are optimally packed configurations > (of plant organs such as flowers, leaves, or seeds) that maximize > access to light and nutrients and thus provide an evolutionary > advantage. But how does a plant know how to grow such optimal > morphologies? According to a paper in Physical Review Letters, > Fibonacci patterns can emerge as a result of the physical and > biochemical mechanisms underlying plant growth.