 One response is that what justifies intra-species partiality is not the capacity to share but the capacity to benefit. Thus, Gunnarson (2008) suggests that members of our own species have a capacity to derive unique, intrinsic benefits from their relationship to other human beings. Reliance on such a capacity may provide an intuitively more appealing basis for full moral status than biologically-based similarities. But it might still deny full moral status to some humans—not only anencephalic infants but others lacking the capacity to benefit from relations with other humans. Moreover, some non-human animals, especially domesticated ones, may derive immense benefits that are intrinsic and unique to their relationship to humans (Townley 2010). And the members of other cognitively advanced species might well benefit in highly specific, possibly unique ways, from interaction with human beings.