10 Could-Be Vicious Dog Breeds From Around The World

6 /10 American Bulldog

Muscular and agile, the American bulldogs are built for farm work, whether chasing down stray cattle or keeping intruders at bay.

Their ancestors also were farm dogs tasked with guarding the livestock, home, and kids too.

Unlike their ancestors, however, today’s American bulldogs should not be left alone daily; otherwise, they easily get bored and provoked toward aggression.

They may attack anything or anyone they don’t know, like postal workers, strangers, and even children. Proper socialization is paramount.

5 /10 Mastiff

Throughout history, Mastiffs have been used as guard dogs, hunting dogs, and war dogs.

Unfortunately, many were used for blood sports, where they fought each other and different animals like bulls, lions, and bears. Mastiffs are typically large and powerful. 

Instinctively protective, Mastiffs must be properly socialized with people and other animals.

Otherwise, they can become fearful of strangers and new situations, leading to aggression. With the intimidating size and big head, a Mastiff attack may leave the victim seriously injured.

4 /10 Siberian Husky

The American Society for the Prevention of Cruelty to Animals (ASPCA) describes Siberian husky as “good with children.”

The breed has an explosive amount of energy indoor and therefore requires special exercise routines. Without proper care, Siberian huskies can be destructive.

Originally developed as sled dogs (some are used for this purpose today), Huskies are a pretty remarkable breed with an impressive ability to learn new things.

The downside is that now and then, they use that staggering intelligence to learn annoying stuff. Even on a leash, they are not overly eager to please their handler.

3 /10 Labrador Retriever

One of America’s most popular breeds, the Labrador retriever, is a descendant of fishing dogs. In the past, they earned their keep by helping fishers fetch ropes, haul nets, and retrieve fish in the North Atlantic.

While today’s primary role in the field remains as hunting retrievers, they are also favorable disability assistants in many countries.

In general, Labrador retrievers are not known to be aggressive dogs.

They are not aggressive, but they can be if trained to develop hostile behavior. Like humans, every dog has a unique personality; the way a dog is trained will determine a prominent personality.

2 /10 Boxer

Although categorized under the “Working Group” by the AKC, most Boxers are now family pets. Because they were originally bred to be guard dogs, they still have intense energy levels and require plenty of exercises.

It has been well-established that Boxers are eager to show their love and faithfulness to their masters. They are harmless in the family but can display aggressive behavior toward strangers.

Boxers are not aggressive by nature, although their instinct as guardians never really disappears. Just like all fogs, socialization will help turn down the unfriendly manner.

1 /10 Doberman Pinscher

Bred to be personal protection dogs, Dobermans are naturally intimidating and fearless.

They will not hesitate to defend their masters from potential threats, including from other dogs. As vicious as they might be, Dobermans are sufficiently restrained and obedient.

Modern breeders have successfully tone down the aggressive side of the characteristics. Unfortunately, Dobermans have long been stereotyped as a hostile breed.

They are formidable guardians, alright, but at the same time gentle and loving dogs, the kind of pets that never go looking for troubles.