English Bulldog was the first dog to develop the so called 'lock jaw grip' which really has more to do with a dog's gameness than any structural difference in its jaw. A true Bulldog has the ability to chase, catch and hang onto the nose, cheek or throat of a large herbivore and not let go no matter how hard the beast struggles or how much punishment the dog is forced to absorb. Throughout medieval, Elizabethan and the early industrial periods, Bulldogs routinely caught horse, cattle and boars. Sometimes in routine farm or butchery work and sometimes in staged competitions. When catching domestic animals, the Bulldog was usually able to make the hoofed creature submit to the excruciating pain of the bite before being harmed himself. When it is ready to cry "uncle" a bull will lower its head to the ground and allow the Bulldog to drag him backwards to the butcher. The bovine can then be slaughtered or put into a holding pen.

An old time working Bulldog also had the ability to throw a bull to the ground by rapidly corkscrewing his body right when the big beast was off balance in the middle of a stride. It was possible for an experienced 80 pound Bulldog to topple an 1800 pound bull.

Though his main opponent was usually a bull, the English Bulldog was also used against bears, lions and other ferocious carnivores. These staged fights were called baits. The Bulldogs employed on bears and large meat eaters were heavier than the ones used solely on livestock. For the larger opponents speed was not as important and the fight would take place in an enclosed area so endurance was less of a factor. Whether large or small the working English Bulldog that survived this grueling gauntlet of animal combat became the greatest canine warrior ever. In 1835, all animal baiting contests were made illegal in England.

The only baiting that survived the ban was dog baiting or dog fighting. Coal miners in the Staffordshire region crossed English Bulldogs with scrappy terriers and continued the gladitorial tradition in clandestine matches that are still going on today. From these Bulldog terrier crosses we get the American Pit Bull Terrier, the Staffordshire Bull terriers and the Bull Terrier.

Because of the anti-baiting laws, purebred Bulldogs were very rare in England by the middle of the 19th century. They were being exported to America where they joined and improved the working Bulldogs already in the former colonies. They were also shipped to Germany where they helped create the Boxer. They were crossed with Mastiffs to create superior guard dogs. Interestingly, the early Bullmastiffs were often white or piebald, only latter with the addition of dark brindle mastiff blood did darker colors evolve. And finally the last of the working Bulldogs were crossed with pugs to create a blocky mild mannered little show dog.

Today, the dog the world calls the English Bulldog is really a Pug Bulldog cross, a fine animal in its own right but not a true working Bulldog. In fact, the working English Bulldog became extinct in his native land at the turn of the 19th century. Fortunately he survived in America, especially in the mountainous regions of the rural south. There he was saved from extinction because he still had work to do. Hogs and cattle were allowed to free range in this rugged terrain where fences were impossible and could only be caught with hardy English Bulldogs.