if you don't have 8 minutes to spare, don't watch this now. you seriously need to stop what you are doing, put on some headphones (or gather some co-workers) and watch this video. this is some amazing video footage caught on home video of survival of the fittest in action. the video is safe for work (unless you work at PETA i suppose).
let me boil it down: lions waiting to pounce heard of buffalo, they get one, other buffalo escape, alligator gets buffalo, other buffalo return to kicks some arse, initially targeted baby buffalo walks away...alive