Yes, mine was born with a short tail
More info has to be given even for a guess.
it depends on who is docking the tail the vet or a breeder
Australian Cattle Dogs and Blue Heelers are the same thing. 'Australian Cattle Dog' is it's official name, but we (In Australia) often call them blue or red heelers for the colour of their coat and their ability to 'heel' cattle. There are however 2 breeds of Bluey (we shorten everything in Aus, it's got a nickname for the nickname). One is the Australian Cattle Dog and the other is the Australian Stumpy-Tailed Cattle Dog. They look pretty much the same, except for the obvious; one has a short tail.
When it is a DOG.
A Shorkie adults tail only gets cut when it is frightened. A puppy does not.
A puppy with a short, crooked tail that is supposed to be a Golden Retriever mix may have inherited traits from other breeds in its lineage. Breeds like Cocker Spaniels, Dachshunds, or even certain terriers can have similar tail characteristics. The crooked tail could also be a result of an injury or a genetic mutation. For a more accurate identification, consider consulting a veterinarian or a dog DNA testing service.
for looks
short tail
Yes. The Lynx has a short tail.
The American bobtail has a short tail because the short tail gene is more dominate.
When they aren't looking
A pigs tail is short and curly.