Rottweiler's were originally to herd cattle. They were also used to guard the cattle day and night. In the United States, they are mostly kept as house pets.
The Rottweiler may have descended from the Italian Mastiff (which is now the Neapolitan Mastiff). It was a herding dog in the Middle Ages. The dog, as we know it today, was bred in the German town of...
Yes, everything is bigger in Russia, specially the dogs. They are more aggressive too... But in our days Russian professional breeders are using FCI standards, so their dogs look almost the same as...