Filippo Bertoni and Uli Beisel have written an interesting and intriguing essay on the ethical challenges posed by extending person-status to cetaceans: “More-than-human intelligence: of dolphins, Indian law and the multispecies turn” over at Society and Space. I only wish the terms in which their discussion is framed had been clearer. For example, they provide no working conception of personhood – though there are many philosophical candidates – and their passing allusion to sharing “somatic sensibilities” is similarly vague. This is a pity because the philosophical and ethical problem they raise is genuine. Should we regard human-style personhood as the tip of an cosmic moral hierarchy from which the only way is down? If not, then how do we negotiate relationships between beings with lives that are phenomenologically different but perhaps not less valuable than humans?