Popular Guard Dog #9: Mastiff
The mastiff is another large breed of dog whose presence alone is enough to discourage potential intruders. In addition to its size and power, the mastiff is also renowned for its bravery. This is a breed that will never stand down from its duty to protect, making mastiffs among the most popular choices of guard dogs. They are also known for their bark, which is enough to let people know that they should keep well clear.
Although they are an intimidating and powerful guard dog, mastiffs also have a very soft centre. They are known for being docile around families and are great with kids. They are gentle giants and are tolerant of other pets. They are also excellent house dogs and despite their size, require only moderate exercise.