We have a number of urban beavers in our neighborhood, and their work is quite impressive to watch (the animals themselves keep out of sight). Within a few months, they've managed to thoroughly decimate the trees around them, and remodel the creek they live in.

Of course, the beavers would reject the idea that they are causing "Damage". At least in the longer term, the landscape they live in turns out just fine. It's just that beavers have rather different ideas how that landscape should look, in terms of flooding, tree mix, etc, and have the means and the determination to impose their preferences on their habitat.

I can see how that would distress some owners, but I'm glad they are being tolerated in our city.