Animalism and the varieties of conjoined twinning.

We defend the view that we are not identical to organisms against the objection that it implies that there are two subjects of every conscious state one experiences: oneself and one's organism. We then criticize animalism--the view that each of us is identical to a human organism--by showing that it has unacceptable implications for a range of actual and hypothetical cases of conjoined twinning: dicephalus, craniopagus parasiticus, and cephalopagus.