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The black, flea-like shape you see here is the classic Mandelbrot-set icon. Okay, it looks more like Frosty the Snowman tipped over into an inkwell. But in honor of Jonathan Swift (see intro), suspend disbelief for a moment and imagine it as a kind of fractal flea, seen from above, with its bristly head facing left. Now, see the next image to zoom in on our fractal flea's head.