5. Kangal

The Mastiff breed, known as the Kangal dog, is enormous and powerful enough to repel predators like wolves and bears. It is a big sheepdog descended from Turkestan. Depending on its environment and treatment, this breed can be a family’s best friend or greatest nightmare. Although the Kangal is protective, it is typically greeted with warmth and tenderness. When the dog is at peace and relaxed, that is. The size and bite force of these dogs are said to be as strong as 743 PSI, and if they sense danger, they would defend themselves by biting.