Though many people think that all Labrador Retrievers look similar, the truth is, we’re just like people! We can develop with different colors, facial characteristics, and bone structure. These traits may be the result of selective breeding, since many Labradors are selectively bred for use as show dogs (which requires certain appearance characteristics). Appearance characteristics usually have little or no effect on a Labrador Retriever’s overall temperament, and have not been proven to affect a Labrador’s general health.
Though many people think that a “Blockhead” Labrador refers to a dog that is particularly stubborn, the truth is, it’s just another structural trait. A blockhead Labrador has a head that is more blunt and box-shaped. English Labrador Retrievers are most commonly associated with the “Blockhead” trait, since this is an early representation of the Labrador breed. English Labrador Retrievers are usually bred more to resemble the historical foundations of the Labrador Retriever breed, which have box-shaped heads. American Labradors have been bred more for hunting, and are favored to have a longer, narrower muzzle than English Labradors. This type of Labrador is also referred to as a “field dog”, not suitable for showing.
American Blockhead Labs are usually bred for this characteristic when they are to be used as show dogs. Generally, most picture representations of Lab show dogs that have a perfect Blockhead. This is considered to be an ideal representation of the Lab breed. Blockhead Labradors are quickly losing popularity in America, since many breeders are instead choosing to breed characteristics such as hunting ability and temperament. At this time, however, a Labrador that is bred to have the blockhead trait will fetch a much higher price than the average Labrador. This is because Blockhead Labradors still have potential use as show dogs.
Source by Sean Green