And a million mutations couldn't funish the new information needed for flippers.
That is an assertion, you have no support for it.
I meant that there are limits to the species ability to change.
That is an assertion, you have not supported it yet.
Yes I know that animal breeding is not natural selection, but it shows that important genetic information is lost, not gained in new sub species. Domestic animals are a valid example in that context.
It has been pointed out to you why artificial selection is a flawed example. You have not answered those points.
But lions and tigers can breed. What am I missing now? Didn't someone state that the ability to breed was one of the defining factors determining species? Yes, I think they are all cats.
Have you googled the definition of species on the web? I think it is time you start doing a bit of your own research since you seem to be ignoring what is posted to help you learn.