Enough from the “humans should be more like the gentle animals” crowd. Animals are heartless killers.
I do get your point about the Bambi crowd applying concepts of "nobility" or "honor" to animals. The same thing happens when they get all starry eyed about pre-Columbian America being inhabited by peaceful natives at one with nature. Entire Indian cultures, like the Pueblos, died out from over populating and despoiling their local environment as badly as any European might and tribes fought wars and took slaves as viciously as the rest of humanity.
But I would say that animals are no more "heartless" than nature is "cruel". Neither word really fits outside outside the human context. Animals, to survive, are efficient killers and nature just doesn't give a damn.