It is sometimes argued that certain breeds are inherently aggressive towards humans and shouldn't be allowed at all, or that, due to the popularity of certain potentially dangerous breeds, these dogs are often owned by irresponsible owners who provide insufficient training or, worse, aggressiveness training. An opposing argument is that no breed is inherently aggressive towards humans and that regulating one breed simply moves the irresponsible owners to start focusing on breeds that haven't yet been regulated, moving the problem to other breeds. This is one of the positions taken by the American Veterinary Medical Association. It is stated that Pitbulls and Rottweillers have the most attacks on human. On the other hand, most attacks are atributed to pitbulls because authorities could not tell the breed and theorefore stating to be pitbulls.
All breeds have different behavioral traits. Bantams are often more aggressive than standard breeds. Some breeds like Cochins or Brahmas are docile and well mannered whereas leghorns and La fleshe breeds can be nervous, aggressive to other breeds. La Fleshe are also called Devil birds.
Any dog may be taught and trained to be aggressive. Those chosen to do so are usually larger breeds. German shepherds, Rottweilers, Doberman s, etc.
Black sex links are more aggressive than Golden Comets, though both are bird aggressive breeds.
Certain breeds of dogs make good companions to children with handicaps. Golden Retrievers and Labradors are favored as assistance dogs.
Some breeds were bred to be fighting dogs. Because of that, they needed meaner dogs.
what do you mean by certain breeds?? they have so many to choose from (although I know they don't have all of them) to get you extra points on the game you normally have to breed pure breeds
In general, Newfoundland dogs are not aggressive. As a matter of fact, they are well known to be one of the most gentle and loving dog breeds around. They are often chosen as family pets and companions for children due to their placid, patient, and gentle nature. I have never seen of heard of an aggressive newfie.
certain breeds are
some do certain breeds do
They can be, especially towards a predator like a bear, cougar or wolf they perceive as a threat towards their calves. Cows can also be dangerous and aggressive according to genetics: depending on that cow's traits from her dam and sire, she has the potential to be as nervous and flighty (which initiates her to be aggressive when cornered) from either her sire's side or her dam's side. The same thing for the potential for a cow to be a calm, docile animal.Breed also has a resounding impact on how dangerous and/or aggressive a cow (or even a bull!) can be. Breeds such as Charolais, Limousin, Salers and Maine Anjou are such breeds that are more prone to have nervous, flighty and aggressive animals than others like South Devons, Red Polls, Herefords, Shorthorns, British White or even Black and Red Angus. Some Charolais, Limousin, Salers and Maine Anjou breeders may disagree with this statement, but they will agree on one thing: Their cows are calm and docile because of selection. They are (or have been) very strict on culling any cows and bulls that have the potential to have bad temperament. Those that have good temperament get to stay. With other breeders that raise the same breeds that are not as stringent on culling using temperament as a main driving force, there's more likelihood of seeing cows of these same breeds that are more dangerous than those cows of other breeds (i.e., Hereford, Angus, Shorthorn).
The three most aggressive dog breeds (google this and you'll find my sources):DachshundChihuahuaJack Russel TerrierThe previous answer stating the most aggressive breeds are the 'pit bull' (which isn't an actual dog breed anyway and more of a "type"), German Shepherd, and Rotweiler was misinformed. These are not dogs born aggressive.Any experienced dog trainer will tell you that any dog can be aggressive, but at the same time any dog can be a cuddly joy to own. Attacks by chihuahuas and other small dogs are probably the most common, but not reported because the bites seldom do much harm.The media give certain dog breeds bad press to sell more stories. For example, if someone reported on a young Labrador which attacked a child, it wouldn't be a great storyline. Attaching an image of a fluffy eared bright eyed Labrador doesn't give the same effect as an aggressive looking German Shepherd.