Despite their little build, the Pembroke Welsh corgi is everything but cute.
Corgis were first developed as a means of herding Welsh cattle, but they rapidly found other uses around the farm.
Corgis are not only great at keeping rats and other pests away, but also in protecting and herding livestock.
The Portuguese water dog was developed there because of a great need for skilled gundogs.
They like nothing more than spending hours at a time swimming and retrieving wildlife since that is how they were intended to function.
They've also seen a rise in popularity here in the States.
The Karelian bear dog, sometimes known as the Carelian bear dog, is a breed of dog that was first developed in Finland.
The Karelian bear dog, unlike most of the other canines on this list, was developed specifically to track and kill huge, dangerous animals.
The intense need they have to defend their territory from other animals makes it unsafe to keep them as pets.