This intricate object is a Mandelbulb. No, not a piece of hyperbolic crochet but possibly the most accurate three-dimensional representation yet of the famous fractal Mandelbrot set. From fern leaves ...

See: our gallery of how the Mandelbrot set burst out of two dimensions It may look like a piece of virtuoso knitting, but the makers of an image they call the Mandelbulb (see right) claim it is ...