What is the biggest dog breed on the entire planet? Have you ever stopped to wonder what are the biggest dogs in the world?

In this age of modern domestication, why are the largest dog breeds ... after the Guinness Book of World Records crowned him the world’s tallest living dog. He was 3 years old.

The Diamonds in the Ruff event hopes to break the current Guinness World Record for the largest dog wedding ceremony, which included 178 canine couples Kelli Bender is the Pets Editor at PEOPLE.