As we are learning, or perhaps you learned long ago, the story of the environment and man, and the idea of an ideal state of nature influenced or uninfluenced by man, is a bit of a complicated question.... there is not only science involved here but philosophy.. this is a short entry however, so I will try to cut to the chase..
The Cougar is introducing it's self, or reintroducing it's self, to Alaska..
Whether to chalk this up to Hope or Fear is a matter of question, but I'm going to toss it in the Hope category.
http://www.adfg.alaska.gov/index.cfm?adfg=wildlifenews.view_article&articles_id=26
Reason why it might belong in fear: Global warming might be making previously inhospitable territory hospitable, but I kind of don't buy that in this situation because the lands of South East Alaska, where they are most likely to live, haven't changed that much.. what a solid land it is... amongst the most beautiful places in the world I might add.. to see the Lynn Canal or perhaps gaze across Frederick Sound from Mitkoff Island with whales breaching is to behold something special.