The bull shark is a requiem shark. Requiem sharks are the family of sharks which include Grey reef, Tiger, Lemon, Blue, Black tip, White tip reef and Bull (or Zambezi) sharks (among many others). The Great White shark is a Mackerel shark.
The bull shark is no more capable of killing a human than any other shark of its size, which is 7 to 11½ feet long based, but is more aggressive than other sharks, even the Great White, and has attacked more humans than any other shark. It also comes in contact with humans more often than other sharks as it tends to hang around close to the shoreline - where humans prefer to be, prefers warmer waters - also where humans prefer to be and swims well up into the freshwater rivers - yet another reason humans are more apt to come in contact with them.
The Great white, on the other hand, is less likely to attack a human, but does far more damage than other sharks when he does. His size is what makes him so dangerous. He can grow up to around 20 feet long.
The bull shark is no more capable of killing a human than any other shark of its size, which is 7 to 11½ feet long based, but is more aggressive than other sharks, even the Great White, and has attacked more humans than any other shark. It also comes in contact with humans more often than other sharks as it tends to hang around close to the shoreline - where humans prefer to be, prefers warmer waters - also where humans prefer to be and swims well up into the freshwater rivers - yet another reason humans are more apt to come in contact with them.
The Great white, on the other hand, is less likely to attack a human, but does far more damage than other sharks when he does. His size is what makes him so dangerous. He can grow up to around 20 feet long.