The Karelian bear dog, also occasionally called the Carelian bear dog, hails from Finland. While most dogs on this list were bred to hunt average-sized game, the Karelian bear dog was bred to hunt large, fierce game, like wild boars, wolves, moose and, you guessed it, bears.
Of all the dogs mentioned, this breed is the least well-suited to being kept as pets. They’re naturally territorial, and their instinct to fight other animals is too strong to keep them with other pets.
These hardcore hunters also have been used by multiple national parks to help control big game.