Rottweiler

Rottweiler

Germany
The Rottweiler is a large, robust and powerful German dog, black with well-defined reddish markings. It was the "Rottweil butcher's dog", used to drive and guard cattle, and later as a police dog. The standard describes him as kind-hearted, calm by nature, very devoted, obedient and willing to work.

More about the breed on WikiAnimals