Dog are generally kept as pet in the people’s houses. Do you have a pet dog? How big and smart is it? Well, now I am going to introduce the world biggest do you have ever seen. Now this giant Hulk – who weighs in at a huge 12 stone – is a father of eight puppies that cost around $500,000 (£320,000) which is the expensive dog in the world. Now watch the video down below from the beginning to the end to see more detail about daily of this giant dog. Please let us know by leaving your comment in the box below.