Wow, rather frondy, if that's a word. Where did all the fractal fleas go? Well, a Mandelbrot set includes more than just the classic icon we started with. In fact, any portion of the images you see in this feature that is black belongs to the Mandelbrot set that was generated by the iterative equation we used. (For more on iterative equations and how they generate fractals, see The Most Famous Fractal.) But wait... What is that hidden amidst this filamentous frond? You got it—another Mandelbrot-set icon.