Examples of fractals are everywhere in nature. They can be found in the patterns of trees, branches, and ferns, in which each part appears to be a smaller image of the whole. They are found in the branch-like patterns of river systems, lightning, and blood vessels. They can be seen in snowflakes, seashells, crystals, and mountain ranges. We can even see the holographic and fractal-like nature of reality in the structure of the Universe itself, as the clusters of galaxies and dark matter resemble the neurons in our brain, the mycelium network of fungi, as well as the network of the man-made Internet.
