 For both types of group-based accounts, the categorical nature of full moral status is explained by the way in which that status is grounded. Membership in the human species, a sufficient condition of that status for accounts of both types, is a categorical rather than a continuous “variable” (although there may be some vagueness or ambiguity due to imprecise or conflicting membership criteria). And for both types of account, the grounding of full moral status is the same for all human beings, regardless of their individual attributes.