Dogs come in all shapes and sizes, but as any puppy aficionado knows, they are always cute—no matter how big or small—even when a dog tall enough to drink from the kitchen sink thinks he's a lapdog.

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.

Have you ever walked past a dog so massive that you had to do a double take, wondering how much it eats or where it even sleeps? Big dogs have a way of stopping people in their tracks, and not just ...

Dustin Rhodes and his mastiff Beast took home a big honor, winning third place in the working group open category at Crufts in the United Kingdom ...