Anytime mankind gets involved with trying to manipulate nature the whole balance gets out of whack. There were wolves in Yellowstone and the surrounding areas before man (and I don't mean just men) killed them off. Now "we" are tyring to bring them back and of course wolves are hunters so the population of their prey is going to go down. I think it would all balance out in time if we'd just stay out of it. We should remember that the earth belongs to the creatures too and maybe we don't need to live in every square inch of the earth, maybe we can leave some of it to the other creatures. There are ways to live in harmony with the animals, it just takes times and some extra effort.
I am going to make this my last post on this topic or I'll get up on my soapbox and this isn't the place for that. Just please remember we need to share the earth with all of God's creatures, they have a right to live too.