These enormous dogs pulled heavy loads. They have a great motivation to seek and catch prey thanks to their ancestors.
It is commonly known that these small-framed dogs have strong defence instincts.
Dobermans are autonomous, intelligent dogs that were initially intended to serve as personal protection dogs.
Despite their name, German boarhounds created this breed.
The most contentious breed on our list, pit bulls are considered to be unpredictable and violent, even towards their owners.
In addition to their strength and herding abilities, Rottweilers have a strong guarding instinct as well.
A relative of the Spitz is the competitive husky. Still desires to be a part of a pack.
The deliberate breeding of wolves and dogs was problematic.