French Bulldogs may still dominate as the most popular dog breed in the U.S., but a newer contender is rapidly climbing the ranks. The Cane Corso — a powerful and protective Italian Mastiff — has seen ...

If you're looking for a big dog, you might want to consider a neapolitan mastiff or an American molossus. These are two of the largest dog breeds out there and they have some significant differences.

Some dog breeds rival motorcycles in weight, shaped by centuries of work and strength. From towering Great Danes to massive Mastiffs, these gentle giants redefine what “big dog” truly means.

Sometimes the bigger the dog, the gentler the soul, as one English mastiff proved with its confused first encounter with a tiny three-pound kitten. English Mastiff Otto, three, was introduced to ...