From the spiral arms of galaxies to microscopic snow crystals, nature seems to fall into fractal-like patterns that repeat in increasingly smaller increments. No matter how small you go ...

What basic pattern was repeated here to produce this fractal? The fern. (Larger view: white on black , black on white.) If you look closely you will see that every 'leaf' of the fern is a tiny fern ...

Each of these florets is also composed of spiral arrangements of even smaller ... gives Romanesco cauliflower its remarkable "fractal" character. How have genetic changes accumulated over the ...