[lachs2k]

For the same reason that we now consider murder, assault and other actions that harm people morally wrong. These have also been a part of life ever since humans or other hominids roamed the earth, we just determined that they are morally wrong later on.

[fgfarben]

Oh? Are you going to do a citizen's arrest on a wolf for traumatically murdering a deer, thereby violating its right to avoid cruel and unusual punishment?

[nextaccountic]

Why should wolves be bound to human rules? These rules were generally agreed upon by human societies, and it's the social contract that gives them legitimacy (and not some universal rule that extends even to wolves).

On the contrary, not only wolves can't be found guilty of murder, they aren't required to pay taxes too.

[lachs2k]

A wolf has no moral agency and therefore can't be held accountable for its actions. It makes no sense to compare them to humans.