Time heals griefs and quarrels for we change and are no longer the same persons. Neither the offender nor the offended are any more themselves.
Animals have a much better attitude to life and death than we do. They know when their time has come. We are the ones that suffer when they pass but it's a healing kind of grief that enables us to deal with other griefs that are not so easy to grab hold of.
The human race's prospects of survival were considerably better when we were defenceless against tigers than they are today when we have become defenceless against ourselves.