According to People for the Ethical Treatment of Animals, human beings are just another animal species, no more special or important than a snail darter or dairy cow. The group believes, as one commentator put it, that “animal trainers, hunters, fishermen, cattlemen, grocers, and indeed all non-vegetarians are the moral equivalent of cannibals, slave-owners, and death-camp guards.” Newkirk insists that the world would be a better place without people: “Humans have grown like a cancer. We’re the biggest blight on the face of the earth.”