We knew there were mountain lions nearby when I was a kid growing up in Burlington CT, in fact there was a kid at school that was into photography and had managed to get some decent pictures of them. This was in the 1970s. Were those in fact western cougars that had come East?? At the time, and since, I think the official CT state opinion was there there were no mountain lions in CT even though you'd occasionally hear about sightings or cars hitting one in the newspapers. Wonder if those were western cougars? I am not so sure they were specific about east/west back then, just that there were "none". I never believed it since I had seen actual photos.
Whatever the case, I agree we have been poor stewards of the environment -- land, trees, and animals. We tend not to recognize that sort of thing until it's too late. And we tend to balk at government regulation, but in some cases I can see why we have it. Around here, the big issue is the Chesapeake Bay Act, which now prevents us from clearing land within 100' of the waterline. It's a pain to deal with and puts a lot of restrictions on landowners. But when I see what people did in the past decades -- clearing, farming, harvesting timber right to the water's edge -- and the resulting erosion and sedimentation -- I understand why we have these new laws. People really had no restraint in the old days. It was all about getting whatever resources they wanted and who cares about the consequences.
The land we bought and built on was logged over and over since the 1800s. In many places, the erosion was so severe after the land was clear cut that there are 6-8' deep "cuts" where runoff eroded and formed ravines that run to the river. Geologically, it can take thousands of years for that sort of thing to happen naturally. But if you log land and don't take care of it afterwards, it can happen in months or years. I have been able to study aerial photographs going back to 1937, and you can see many of these problem areas as a direct result of the logging activity. It's crazy. The bad part is that all that sediment went straight into the river. Apparently when English settlers came here in the 1600s (I'm right near where John Smith was captured by Indians) the water was so clear you could see down 15-20'. Now you can't see down more than 1-2'.