Great White sharks and Bull sharks are two species out of the many. Although they are seemingly different, they are quite similar. Both of these sharks are both known to attack humans, and they are greatly labeled two of the most aggressive sharks. The Great White shark and the Bull shark are sadly on the radar of being extinct within the next ten years. Notorious for being able to survive in all waters-the bull shark-- gets its name from the shape of its nose and the way it hits his pray with his head. Great White sharks get their name for their white underbellies; they have a light grey torpedo body, can weigh up to five thousand pounds, and grow to a length of 20 or more feet, where as a Bull shark has a white belly such as the great white,