Often a runner-up in the Guinness Book of World Records, the Irish Wolfhound comes in second in comparison to the Great Dane.

Did you know that the American Molossus Dog is the largest dog in the world? You're about to find out! In this video, we're ...

The pooch named Major, is reportedly awaiting judgement from the Guinness World Records which is due next month as it runs for the spot of the largest dog in the world. Julie and Brian Wiliams with ...

From pint-sized pooches to huge hounds, dogs come in all shapes and sizes. But even the smallest and largest breeds around ...

Brace yourselves, Tucson: Giant George, the Guinness World Record-confirmed World’s Largest Dog, has died. His family announced his death last week, Oct. 18, via Facebook: It is with a heavy heart ...

A pair of world record-breaking dogs is proving that pets can come in all shapes and sizes. The current Guinness World Record holders for the world's tallest dog and the world's smallest dog met in ...

A sweet play date between the world's tallest dog and the world's smallest dog is proving friendship can come in any size. The folks at Guinness World Records shared a montage video on Instagram that ...