Fern screen saver let the fern leafs grow on your monitor to make it little bit sweeter, when you don''t work. It uses the fractal IFS algorithm to generate the leaf. There are options to adjust the appearance as well as key values for the IFS algorithm
Paprotka Screensaver displays, computed in real time, growing fractal-ferns. Because they use current screen resolution, the higher your current resolution is, the better fractals will look (but they will require more CPU power for drawing them).