A Lévy flight is a kind of random walk, and supposedly it looks like the paths sharks follow when hunting. Basically you get a bunch of points near one locale then a jump to a new locale. It must've been mentioned on Numb3rs at some point because I read a little more about it and wasn't satisfied with the pictures on Wikipedia. So I wrote a little visualization with PyGame. I borrowed heavily from the stars.py example that comes with PyGame but the whole thing only took 60 lines. Have a look, I put it up on Google Code.