Can "human exclusion zones" in national parks for preserving Wolves and Grizzlies be a good idea?
I think it is a neat idea that should be discussed.
Not just for wolves or large predators but for all wildlife situations
There should be small habitats for all wildlife to refuge scattered around. Of course national parks, reserves and refuges are there for this purpose, but humans have become far too abundant on this planet to coexist anymore, and maybe we need to take it a step further? Again, it's something that should be discussed and awareness made of the issue.

And by far the best reason for this if nothing else is to have a scientific "control" spot for environmental research. It is important to have a control in all experiments, and to have a human exclusion zone helps create that control. If we had that, maybe someone could actually prove how much humans really are screwing up the planet, or maybe someone will prove they aren't :D