There are definately plenty of coyotes in PA, and some of them inhabit areas that people would quite surprised about. The cougar debate has gone on for years. The Game Commission denies the existance of any wild cougars in the state. I believe there have been a few issues with pets getting loose. Do I think they exist? I'm not sure, but part of me likes the idea of my home state being more wild than we think. I have no doubt that they could exist in parts of the state, but I don't think that they would become very widespread or with great numbers. Of course part of me actually believes in bigfoot too. As far as the game commission or insurance agencies releasing predators to control the heard, I think its rubbish. There has been a hotly debated topic of deer herd reduction in PA for a while now. I'm not sure which side of the fence I sit on, but I know that those who have taken sides are usually pretty vehement about the side they chose.