Stumpy tail cattle dog Australian shepherd Laika
I am going to have to say it is an Australian Shepherd mix because of its characteristics and will to learn. Its body structure is just like an Aussie's body. Its face looks just like them. It also has a docked tail and that is a very, very common trait of an Australian Shepherd Dog. But it is white but not albino so that is why I think it is a mix.
It resembles a tri-colour English Shepherd. An other option is an Australian Shepherd, which is very similar to the English. The standard for the Australian is for a docked tail but that is now banned in some jurisdictions. It does not resemble the Smooth (short haired) Collie except that it is a herding breed.
When a dog's tail is docked, the vet surgically removes part of the tail. The removed tail does not get reattached or preserved. It is typically disposed of as medical waste according to proper disposal protocols.
No dog needs its tail to be docked, but the operation is performed for cosmetic reasons on some breeds. Show Miniature Pinschers are almost always docked in countries that allow it, but the operation does not affect the dog's health.
The US.
can you give a picture, or picture link?
For some breeds yes. For example, an Australian Cattle Dog is usually seen with a long tail, but there is the Australian Stumpy tail Cattle Dog, which (in my opinion) seems pretty if not exactly similar. Other dog breeds have docked tails. Some breeders/breeds have been bred to have shorter tails.
In the Dec. 2011 Lexus TV commercial "Ringtone," the dog featured looks like an Australian Shepherd, although its tail is not docked. The first couple of times I saw this TV commercial, I thought it was a black-and-white pit bull, but the dog has long hair.
Australian Shepherd
Australian Shepherds can be born with either a naturally long tail, a naturally bobbed tail, or no tail at all (naturally tailless). Tail docking is discouraged or banned in many countries, so it is best to check with a reputable breeder to see what type of tail a specific Australian Shepherd may have.
its a possibility