Rottweiler is medium to large sized dog breeds, originating from Germany. They are also known by other names like Rottie and Rott. They grow to a maximum height of 25-27 inches. It weighs a maximum of 115-130 pounds. They are used as working dogs and as guard dogs. They have heavy bone structure and muscular built. Its gait is powerful, elegant and strong. Its coat is short and dense, with a glossy effect. Its highly protective and guarding. The guarding instincts, make them wary of strangers. They tend to bark in order to keep them at bay. They need constant training, to make them socialize with other dogs. They are extremely loyal and guarding of Its family.