dangourus dogs

the most dangerous dog would be the ones that are trained to kill.but aggressive dog breeds are usually pitbulls,doberman pincher and rotweillers.those are used for guarding people or property.

The most dangerous dog is the one who's owner has failed to properly train said dog.

I would say that 9 times out of 10 it's not the dog's fault that its behaviour is dangerous. Certain breeds have been labelled dangerous, but it's really a case of the owners not training them properly and not educating themselves enough about the dog they have. Some people get rough looking dogs as a status symbol and don't treat them right. Then the dogs learn frustration and violent behaviour and it all contributes to the myth of dangerous breeds. There aren't really any bad dogs, just bad owners.

And before anyone jumps in and says Pitbull, I would like to mention that Rottweilers have been proven far more likely to bite than Pitbulls. While I will agree that there are plenty of poorly-bred, unpredictable Pitbulls out there, in my years of experience working for veterinarians we have very little trouble with Pitbulls whereas some Rottweilers and German Shepherds have been very dangerous to work on. Other dogs that have unpredictable temperaments (by breeding) and have been labeled as "dangerous" are Dogue de Bordeaux and Cane Corso, which are both Mastiff breeds. Breeds most likely to bite would include the above mentioned, as well as Akitas and Dalmatians. Dalmatians are responsible for a lot of child-bite incidences, too.