If I were ever to have a video as a desktop background, one of these would probably be it! (But I probably never would because it would use up too much electricity to keep it going.) Take a look:
These videos are from Morphologic, a science/art initiative based in Miami and led by a marine biologist, Colin Foord. and a designer, Jared McKay.
Thanks to Deep Sea News (who found it on Boing Boing)!