Just a quick note about the rottie.
They are often compared to the sharpei, and pit bull, and recognized as a ferocious fighting dog.
It takes very little research to determine the differing origins of the breeds. Rotties were bred from cattle herding dogs. They are shepards at heart.
The genetic tendencies are much different than those of a breed whose ancestors were selected for blood sports for centuries.
Actually, they were, due to their size,
employed by the Germanics as cattle guardians and draft dogs, but they were originally imported into Germania by the Roman military, i.e., they were dogs of war, bred for menacing and attacking anyone not wearing the uniforms of their handlers.
