"... wild animals suffer from a wide range of harms regardless of their reproductive strategies, including hunger, disease, parasitism, and natural disasters. These harms often cause intense suffering, and we should not disregard this suffering merely because the sufferers happen to live in the wild, or because they happen to have non-human bodies. We rightly acknowledge a moral duty to relieve intense suffering experienced by humans, including when it is due to natural causes, and there is no justification for restricting this moral duty to humans only ... ."