1 PitbullPitbull is popularly regarded as the most dangerous and feared dog in the world. The Pitbull is feared because they have locking jaws and are well-known to not release their bite so easily. These dogs are famous for illegal dog fighting in numerous parts of the world, and some country govts have banned the breeding of pitbulls.
2 RottweilerRottweiler is very intelligent, but stubborn dog that originates from Germany. Rottweiler can reach 22 to 27 inches in height and 80 to 130 pounds of weight. Though not particularly aggressive, the breed have one of the worst tempers, and are also, considered unsuitable family dogs. Average life expectancy of this dangerous dog is 12 to 14 years.