Everyone always talks about the Fibonacci sequence w/r/t the golden ratio, but in nature it's usually a variant on a Lindenmayer system: http://en.wikipedia.org

Everyone always talks about the Fibonacci sequence w/r/t the golden ratio, but in nature it's usually a variant on a Lindenmayer system: http://en.wikipedia.org/wiki/L-system http://en.wikipedia.org/wiki/L-system