It is normal for some dogs to have a black roof to their mouth; it is simply part of their natural colouration. If the black part looks lumpy or is growing oddly then you should take your dog to the vet.
All dogs do.
It does not mean anything, some dogs are born with it, but nobody knows why.But don"t worry, your dog is ok.
It may mean they have a flavor in their mouth that they don't like
I would say that a collie is better, since a black mouth cur was bred as a multi-purpose dog rather than a herding dog.
Chows Chows do.
That would depend. Did the dog kiss you on the mouth?
Spray it with a fire extinguisher. I have also used anything from a water hose to a baseball bat. if you pt your hands in its mouth a push the roof of the dogs mouth it gags the dog idc
I would suggest you take it out. But it's just a suggestion.
a black cat or a black dog
A pug dog has a black mask. If it is an all black pug dog you cannot tell, but on a fawn-colored pug dog you can. The pug has a black marking that goes around its mouth and eyes, which is often called a mask.
No, black is not considered a bad luck color in dogs.
It is wise to take your dog into the vet immediately as your dog could have a sliver or other foreign small object stuck inside the skin of their mouth, or, it could be a bad tooth.