Fishing trip surprise: Tiger Shark vs. Hammerhead!

College student Ryan Willsea captured this video a few weeks ago while on a fishing trip in the Gulf of Mexico.

Tiger sharks are "expert at taking advantage of situations when a potential prey item is compromised," Florida Museum of Natural History shark researcher George Burgess told National Geographic. "And nothing makes an animal more compromised than having a hook in its mouth and being pulled to a boat."