Working dogs are known for their strength and size. They were bred to become guard dogs as well as search and rescue dogs, so needed to be extremely brave and obedient. These breeds are all experts in their jobs and stand out among all others. These dogs require a lot of space and exercise so will need owners who can commit to a strict schedule of regular activity. They are also more suited to people who have lots of space for them to wander around and not feel too confined.