This is a response to Drew's post. Last semester my group was looking into having our building perhapse breathe in some way, and as we were looking at lungs I found this great image in a book and scanned it in, and now lost it. At any rate, it was a drawing showing how the lung is basically a fractal in the way it continously breaks down and repeats itself. While looking into the lung thing, we started looking at fractals, and came across that broccoli. Heres some lungs and a fractal fern.