Pat O'Brien

10 Things, Bullmastiff, Pat O'Brien, standard

10 Things to Know Before Judging the Bullmastiff

Second-generation breeder Pat O'Brien discusses this quintessentially British breed.

"The Sandlot Dog"

Meet "Gunner," the Mastiff star of this 1993 family-movie classic.

Irina Kyyanitsya shares her experiences with this larger-than-life guard dog from Central Asia, also known as the Alabai.

Breeder-judge Denise Borton offers keys points of breed type.