mighty dog.
pitbull
With the criteria of power and aggression, Fila Brazileiro is the most dangerous breed.
Some of the most dangerous dogs are:* Pit Bull Terrier* Japanese Tosa* Dogo Argentino* Fila BrasileiroThese are mentioned in a UK law - the Dangerous Dogs Act 1991.
me
The tibetan mastiff and caucasian ovacharka are the two most dangerous dog breeds. Both are the largest mastiffs existing, and have the most ferocious temper. They are both used to guard livestock and hunt bears.
the welsh springer spaniel is the most uncommon breed in the us
The Most Popular Breed of Dog is the Labrador Retriever.
The Labrador Retriever is the most popular breed of dog as a pet.
Any dog of that size can certainly be dangerous, but it's more about the upbringing than the breed.
Labrador Retriever is the most popular breed of dog in California.
The Labrador Retriever was the most popular dog breed of 2007.
There is not a specific dog breed that is smarter than any other dog breed in the world than there is in the USA, but the smartest dog breed are poodles.