Examples of fractals in biology are not difficult to find, and indeed if the universe is fractal, there should be a fractal component to all biological forms. In the post entitled The Photographs, in which I have captured some natural fractal forms, there are at least five forms which are biological. In the post entitled Butterflies and Moths, there were several digitally generated fractals which just happened to look biological. Anyone who has looked up the word fractal has probably been given the example of the fern, or the romanesco, or even the tree. In fact, people can create extremely realistic looking plants using software that takes advantage of fractal geometry. Our lungs, and our vascular systems are obviously fractal in nature. Ever looked at a sea slug? Beautiful little fractals.
When I create my fractal digital art, and sometimes watercolours, I don’t try to make things that are biological, but I recognize natural forms when I see them and they pop up on their own all the time. The fact that I’m not making them on purpose somehow speaks to my scientific side, and relates them to evolutionary theory. I talked about this a little bit in The rose and the creation process as well.
These two pieces are examples which are maybe not as obvious as the butterflies but do remind me of biology just the same.