[mcv]

I have no idea what fishers do, and Wikipedia doesn't help. Could you tell us more?

[danielskogly]

Looks like this one: https://en.wikipedia.org/wiki/Fisher_(animal)

Although I'm not sure what OP refers to, other than them being a top predator.

[mcv]

As I alluded to, I'd found that page already. I'd like to know what they do that's more destructive than beavers flooding your land. Why single out the fisher like that?

I mean, wolves and foxes can wreak havoc on farm animals, but at least they don't turn your land into a swamp.

[pvaldes]

It is cute indeed, like a big polecat, and "can be" tamed (As any other mustelid they can bite hard if they want or are treated bad).

https://www.youtube.com/watch?v=5ic7FyZV0M0

A healthy ecosystem provides enough shelter to the preys for sustaining both preys and predator. It does not modify the ecosystem in the way than a beaver does. Not even close.

[smcl]

They do look very cute, as do all long-skinny forest or river animals (pine marten, weasels, stoats, otters)