Here is a video taken recently of some anglers fighting a 6 foot black tip shark. During the fight a large 12-14′ Hammer head sharks comes in, attacks and eats the 6 foot shark. As you can imagine, every one kinda freaks out in hysteria at this point.
Warning: Some for letter words and a lot of OMG! were said.
During my search I found this really cool video. The video is of dozens of great white sharks feeding on a whale carcase. Some amazing footage. At one point the scientist sits on the dead whale taking photos while the shark is eating away jus a couple of fee from his legs.