While every pup can be cheeky at times, their study found that certain breeds are more likely to be naughty than others — including the Shichon, Cockapoo and Welsh Terrier. "If being affectionate is a crime, the snowball known as the Spitz is going straight to the doghouse," say the team at Protect My Paws.
1. American Pit Bull Terrier. The American Pit Bull Terrier is considered one of the most dangerous dog breeds – both in the U.S. and internationally. They are a very aggressive breed and have been known to attack and kill people.
Golden and Labrador Retrievers
Golden Retrievers and Labrador Retrievers rarely need an explanation when it comes to why they've made this list of least aggressive dog breeds. These are fun-loving, large dogs and tend to be some of the most popular breeds around the world.
Pitbulls came in at number one for the breed responsible for the most dog bites, at 10.3 per cent. They're believed to have a predisposition to violent behaviour, thanks to their history of being used as fighting dogs.
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. State and local governments have been vigorous in restricting ownership of this dog with breed-specific legislation.
#1 – Chihuahuas
Named after Chihuahua in Mexico and only weigh between 3 to 6 pounds. They are the smallest breed but apparently voted the most dramatic dogs, chihuahua attitude = they want to be the boss!
With proper training and management at the puppy stage, you'll have a well-behaved best friend. Your puppy will likely have bouts of naughtiness throughout their first year, but after 12 months of age, your puppy will calm down.
According to Svartberg's data (PDF), a pinscher, a Bernese mountain dog, or an English springer spaniel might be the most disloyal since each ranks very low on playfulness, with moderate sociability.
Lhasa Apso
These long-haired pups were bred by Tibetan monks to be alert-dogs, so naturally, they are big barkers. Lhasas have also been described as manipulative, mischievous and uncompromising.
The Tosa was once used for dog fighting and was bred to fight quietly as Japanese dog fighting rules called for silence. This natural guard dog is protective, courageous and fearless.
Especially in danger of being stolen are pedigree dogs and popular breeds such as French bulldogs, Dachshund and Pugs.
Pit bull terriers have been banned from importation into Australia for over 15 years but there are some living in Australia from before the ban. There are also many cross-breed dogs that look similar to pit bull terriers.
Rottweiler dogs are known for their immense strength and powerful bite, making them one of the few dog breeds that could potentially even kill a lion.
A German shepherd packs a stronger bite of 238 psi, while a pitbull has a slightly lower bite strength of 235 psi. Pulling strength is one area in which the pitbull beats the GSDs. Even now, pit bulls dominate the pulling competition.
If the pit bull can bite the mountain lion, it'll deliver a lot of damage using a shake-and-hold technique. However, the bite of a pitbull pales in comparison to the fatal bite of a mountain lion. Once the big cat bites the pit bull's neck or head, it'll be lights out. This animal battle is a win for team kitty cats.
#1: Great Pyrenees
The Great Pyrenees is one of the softest dogs you could hope for. Your hands will disappear in the plush coat of one of these dogs. They are a large breed bred to be livestock guardians.
Are Australian shepherds aggressive? No. These dogs are not naturally aggressive and make excellent family pets in many homes — they're active, loyal, and loving dogs. So if you're looking for a new canine best friend, an Australian shepherd could be one of the best dogs for you and your family.
Several breeds such as wolf hybrids, Rottweilers, Dobermans, pit bulls and pit bull mixes, German Shepherds, and Akitas often make the list.