Statistics show that the highest dog attacks by breed are from Pit Bulls. Their natural aggression and high provocation rate from humans cause Pit Bulls to have the highest attack rate in the United States when compared to other dog breeds.
Pit Bull Terriers
Probably the most notorious breed on this list, the pit bull has a reputation for unpredictability and aggression, even against its owner or his family.
The NSW government's research also found certain breeds of dogs are more likely to bite people than others. These breeds are Australian Cattle Dog, German Shepherd, Bull Terrier types and Rottweiler.
Cavalier King Charles Spaniels
These toy spaniels are also known for their cheerful nature and gentle disposition (those adorable, round eyes say it all), which makes them less likely to bite and also great with kids.
Labrador Retrievers, Cavalier King Charles Spaniels and Newfoundlands are among the safest dog breeds that are least likely to bite, new research has found. While any dog can nip, these breeds are known for their particularly sweet-tempered spirit as long as they are treated right.
Especially in danger of being stolen are pedigree dogs and popular breeds such as French bulldogs, Dachshund and Pugs.
While the Wolf Hybrid is the most aggressive dog, other dog breeds commonly LABELED as the most aggressive include the Cane Corso, Rottweiler, Doberman Pinscher, Chow Chow, Siberian Husky, Pit Bull Terrier, and other breeds mentioned above.
We don't have good national statistics on dog bites. The Australian Companion Animal Council has estimated more than 100,000 people in Australia are attacked by dogs each year, with around 12,000–14,000 of them requiring medical treatment for injuries, and around 10% of those hospitalised.
For example, grey hounds, Shiba Inus, Cairn terriers, and Basenjis often bond strongly with one person, while Labrador retrievers, golden retrievers, poodles, and beagles like to spread the love more equally.
In almost every measure, out of the 35 most common breeds, Chihuahuas were reported as the most aggressive, especially toward bigger dogs they have not seen before.
Even though a Shih Tzu is little, this is a fierce action that rightfully scares owners. So, as we touched on, most Shih Tzu will have a nipping problem. While every dog breed is capable of severe aggression which includes biting, it is very rare with this breed.
1. Border collie. According to The Intelligence of Dogs, which ranks 131 dog breeds in terms of their relative intelligence, the border collie is the smartest dog breed known to man.
In another study with 20 different breeds, investigators found that male dogs generally showed more aggression toward both other dogs and human strangers [70].
Collies have also become less popular than, say, goldens and Labs because they're not as interactive with their human families, which is what people want more and more. “A collie will play,” Dr. Bell says, “but she's going to give up sooner. She'll say, 'Yeah, this is fun, but I'm not chasing this anymore.
Australian Shepherd
These smart dogs want to corral anything they can, including your family. This habit makes them super protective and also keenly observant, both critical traits in a great guard dog. But their background also means they need plenty of mental and physical activity to keep them from acting out.
There are currently an estimated 28.7 million pets in Australia and we have one of the highest pet ownership rates in the world [1]. Approximately 69% of households in Australia own pets, with dogs being the most common (48%), followed by cats (33%) [1].
Coren says about the only way a bloodhound will stop a burglar is if you “have it sleep across the doorway and a burglar trips over it.” Other softies, in order of the worst: Newfoundland, Saint Bernard, basset hound, and yes, the bulldog.
The Kangal is a large, muscular dog that typically weighs between 100 and 130 pounds. They have been trained to guard sheep and other flocks against giant predators such as wolves, jackals, and bears. The Kangal has a mighty bite, with a bite force of 743 PSI. It is the highest bite force of any dog breed.