The Rottweiler is a breed that originated in Europe. First used by butchers to guard cattle, In the 1900s the breed was used for police work, but eventually fell out of favor. The breed needs an experienced owner who can handle a strong, large dog with guarding instinct. As with most molosser and mastiff breeds, some level of dog intolerance/same gender dog intolerance may occur upon maturity (1 - 3 years of age). #Rottweiler #dog #large #mastiff #guard #guard