Case in point, -farrel dogs, or dingo's were they not a domesticated animal evolved purposefully by man who then became wild through our irresponsibility? As long as man continues to be irresponsible in it's behavior involving our relationship with the earth given to us by G-d or for non-religious folks given to us accidently by nature(that is a scarry though- then why do we inheritally try to persue justice, good and compassion) we will continue to see adverse or damaging side effects of the many bad choices we make in neglect. Neglect is not love, and the result of not loving our earth it's creatures and people in a good way ultilmately could lead us down the road to our destruction. With that said, our ultimate goal should be to minimize and protect the resources that sustain us to the best of our ability. The steelhead, although an important sport fish to all of us, is just a thread in the larger web of the ecosytems health and life cycle. How do we know it is not possible that we will change or alter and better our systems of living in the future whereby our methods of survival will be less damaging then the models we now have? I like to think positively and optimisitically that we will figure it out. The example of Mt St Helens was an excellent one, whether you look at it from a "Nature" viewpoint or a "Spiritual" viewpoint. -It healed itself with time and a little concern from our part. One other note, if the dinosuars suddenly ceased to exist don't you think that nature or G-d intended it that way? Maybe we should be asking ourselves what the end will be or if we should care enough....