Fibonacci and sea shells

Hey... Just found a great website about Fibonacci numbers, the so-called golden section and their wonderful (and sometimes strange) properties. Do you know that fibonacci numbers and the golden section appears naturally in many places ?
Just for a reminder, Fib numbers are 1,1,2,3,5,8,13, .... And the golden sections, is the limit of the ratio between a fibonacci number and the next, about 0.618....
Other ways to find the golden section is through the equation 1/x = 1-x.
For you who have read The Da Vinci Code (I have bought one, and read it), this is one of the clues and facts found and investigated by the characters. Pretty interesting I'd say. In fact, on that website, some informations (or otherwise, speculations) about Leonardo's work that's connected with Fibonacci numbers and the golden section are also mentioned, along with other artists' work, including musician and movie directors.