Justice and asymmetrical power

In 55 BC, the Roman leader Pompey staged a combat between humans and elephants. Surrounded in the arena, the animals perceived that they had no hope of escape. According to Pliny, they then "entreated the crowd, trying to win its compassion with indescribable gestures, bewailing their plight with a sort of lamentation." The audience, moved to pity and anger by their plight, rose to curse Pompey — feeling, wrote Cicero, that the elephants had a relation of commonality (societas) with the human race.

-- Martha Nussbaum: The Moral Status of Animals.