The Bullmastiff is a large breed of dog that is known for its intelligence, trainability, and protective nature. They are a working breed that was originally developed in England to be a guard dogs and a hunting companion.

Bullmastiffs are large dogs, weighing between 100 and 130 pounds and standing up to 27 inches tall at the shoulder. They have a short, dense coat that comes in a variety of colours, including red, fawn, and brindle. They have powerful, muscular bodies and calm, confident expressions.

Bullmastiffs are intelligent and highly trainable, and they excel in obedience and other performance events. They are also good working dogs, and they are often used as search and rescue dogs, therapy dogs, and service dogs. They are generally calm and gentle, and they get along well with children and other pets when properly socialized.

Overall, the Bullmastiff is a large, intelligent, and calm breed that makes a great companion for families with children. They are affectionate and loyal to their owners and are known for their protective nature. They require minimal grooming to maintain their short coat, and they need regular exercise and mental stimulation to stay happy and healthy.

Bullmastiffs are recognized by major kennel clubs, including the Canadian Kennel Club (CKC).