German film-maker Tomer Eshed has created a fabulous animated short. Runs for about 5 minutes, and is an astonishing piece of work: beautiful, educational, and accutely observed fight sequences. You won't see a better nature documentary.
Watch Our Wonderful Nature on MySpace video.
Incidentally, this is one of the films nominated in this year's SIGGRAPH animation festival. This brings back memories of 1991 (yes, a long time ago) when I attended SIGGRAPH in Los Angeles.