"After fleeing Nazi-occupied Poland, Nobel laureate Isaac Bashevis Singer compared species bias to the "most extreme racist theories." Singer argued that animal rights was the purest form of social-justice advocacy, because animals are the most vulnerable of all the downtrodden. He felt that mistreating animals was the epitome of the "might-makes-right" moral paradigm. We trade their most basic and important interests against fleeting human ones only because we can."