Both advocates and opponents of the animalist view that we are fundamentally biological organisms have typically assumed that animalism is incompatible with intuitive verdicts about cerebrum isolation and transplantation. It is argued here that this assumption is a mistake. Animalism, developed in a natural way, in fact strongly supports these intuitive verdicts. The availability of this attractive resolution of a central puzzle in the personal identity debate has been obscured by a range of factors, including the prevalence in contemporary metaphysics of a certain conception of the nature of organisms. I end by explaining how the animalist can use intuitive verdicts, usually thought to present a difficulty for the view, as positive evidenc...