Meet Hulk, the world's biggest pit bull dog weighing in at an incredible 12-and-a-half stone (174lbs).

The enormous hound is owned by Dark Dynasty K9s, from New Hampshire, which specialises in breeding some of the world's most fearsome guard dogs.

Hulk, who towers above his handlers when standing on his hind legs, has now become an internet star after footage of him uploaded to YouTube racked up around 1.1 million in just one week.

Good boy: Hulk is the world's biggest pit bull dog weighing an astonishing 174lbs

American Pit Bull Terriers were created as fighting dogs by crossbreeding bulldogs, mastiffs and terriers. They are descendants of English dogs used to bait bulls and bears for cruel pit fights.

They continue to be used for illegal dog fighting in the US and In the UK are considered so dangerous it is illegal to own one.

However Dark Dynasty K9s insist their animals have calm, well balanced temperaments and would be suitable as family pets.

Feeding time: Hulk towers above his owner as he stretches up to grab a treat

Record breaker: Digital scales capture the weight of the huge hound - 173.4lbs - almost 12 and a half stone