The American Kennel Club classifies Rottweilers as part of the working-class group. The breed was developed in Germany and Rottweilers were commonly employed as police dogs during World War I.
According to the American Kennel Club, Rottweilers descended from a Mastiff-like breed called a drover dog. Drovers were used by the ancient Romans as herding animals. Rottweilers were recognized as an official breed in 1931.
Rottweilers stand between 22 and 27 inches at the shoulder and weigh between 85 and 130 lb. They have black coats with brown or rust-colored markings on the face. These dogs have muscular, powerful bodies.
Rottweilers are an active breed and need a great deal of exercise. They need long daily walks or runs to stay healthy.
Rottweilers have an inborn instinct to protect their homes and human families, making them excellent watchdogs. However, the breed can become aggressive in unfamiliar surroundings and requires early socialization with other humans and animals.
Rottweilers are susceptible to hip and elbow dysplasia, a condition where the animal's joints do not fit together properly. Dysplasia can cause arthritis later in the dog's life.