* Bulldogs are not born tailless. They are typically born with tails, though they are often docked (shortened) for cosmetic or historical reasons.
* Some dog breeds are born naturally tailless, such as the Welsh Corgi and the Manx cat. However, this is not the case with bulldogs.
It's important to note that there can be rare cases of dogs being born with birth defects that might include a missing tail. This is not specific to bulldogs, however.