Rottweiler

The first ancestors of the Rottweiler were brought from Rome while they were invading Europe. They were recognized specifically for their herding and guarding instincts by the Germans, while later the need of the breed withered, the Rottweiler came back strong in the 1900s. The medium sized dog weighs between 85 and 130 pounds and stands at 22 to 27 inches tall. Obedience training and socialization make the breed very devoted to its family.