We are responsible not only for what we do but also for what we could have prevented. - Peter Singer

Animals no doubt have different interests from humans, and may experience different pleasures and pains, but the principle of equal consideration for similar interests still holds, and pleasures and pains of similar intensity and duration should be given equal weight, whether they are experienced by humans or by animals.

The kind of equality utilitarianism supports is given by Bentham’s formula...: ‘everybody to count for one, and nobody for more than one’...Utilitarianism seeks to maximize happiness, and in deciding how to calculate whether happiness is being maximized, no one’s pleasures or pains should count for less because they are peasants rather than aristocrats, slaves rather than slave-owners, Africans rather than Europeans, poor rather than rich, illiterates rather than doctors of philosophy, children rather than adults, females rather than males, or even, as we have seen, non-human animals rather than human beings.

Ethics is inescapable.