Large dog breeds tend to have lots of energy and most of them require a lot of exercise and mental stimulation, otherwise they may develop destructive behaviors. They tend to be loving and reliable once trained.
Popular large pedigree dogs
They can also do quite a bit lot of damage in a small home, with their long, restless, happy tails and their… well, their sheer SIZE! Big dogs can make a lot of mess after a muddy walk on a wet day, too.
Having said that, they tend to form close relationships with children and adults alike. And it surprises a lot of people to learn that they are generally shorter-live than smaller dogs.
Popular large breeds include Afghan Hound, Collie, Curly Coated Retriever, Bernese Mountain Dog, Bloodhound, Bullmastiff, Dalmatian, Dogue Du Bordeaux, Irish Setter, German Shepherd, Golden Retriever, Flat Coated Retriever, Greyhound, Labrador Retriever, Old English Sheepdog, Rottweiler, and Saint Bernard.
A Bullmastiff needs plenty of space to spread out - a big lawn is ideal
Are Large Dogs Good With Children?
In general, larger dogs are more tolerant of children than smaller dogs, but many kids can often be intimidated or scared by their overwhelming size. Like any breed, the large dog will need to be socialized with children, to get used to their behavior.