Pug Boston terriors have curly tails because they must have got that part from the pug parent.
There are no such thing as Boston pug terriers but Boston terriers and pugs are both short haired.
pugs or Boston terriers oh and boxers
By "ring" tail i pressume you mean curly? Here are some breeds with curly tails; Pug, Akita, Siberian Husky, Pomeranian and Chow Chow.
Pugs have curly tails due to breeding. A Pug's tail is set high, curled as tightly as possible, pinned to the back. Double scroll is more desirable among breeders. The tail is the way dogs express themselves, much like a flag. With a pug, if he is asleep and relaxed, the tail becomes long and loose. If the pug is happy, excited, etc. the tail is curled up tight like a knot on top of its butt. When a pug wags its tail, it will usually be tightly curled and flutter like a butterfly wing. When the tail is loose and wagging, in a circular motion, it is a submissive wag which is quickly followed by the pug showing you his belly.
well pugs are more wrinklier, they're tails are curly, and they're like bigger than the french bulldog... and personally they're cuter to me!!!
Of course they can. Pugs are dog friendly, so are Boston Terriers. Here are some topics about Socialization and Training, http://dogtime.com/socialization.html http://dogtime.com/training-by-personality.html
Snug nose and curled tails.
Pug.
Many times an uncurled tail means they are having some sort of discomfort/pain. It is possible to hurt the muscle that keeps it curled, but more often the uncurled tails a sign of something else. It can also be a sign the pug is scared or unhappy if their tail is uncurled. Just like when other types of dogs put their tails between their legs - - uncurling the tail is the pug version of that. Another reason a pug's tail is uncurl is they may have lost or someone. An could be if your pug had another animal friend and the happen to die or run away this may cause a pug to lose their curly tail. or if there master leaves them for a period of time.
You get a bugg
I prefer pugs as they are adorable but Boston Terriors are what i call a rat dog. But it's entirely up to our opinion.
In my opinion: Chihuahua's, Border Terriers, Dalmatians, Yorkshire Terriers, Pug's, Beagle's, Border Collie's, Shetland Sheep Dogs.