 Self-consciousness refers to a subject's awareness of itself, but is also a notoriously ambiguous term — there are importantly distinct senses in which a subject can be self-aware (see for example the SEP article on Phenomenological Approaches to Self-Consciousness). These include: an awareness of one's body as a physical object, or as the medium of one's own perception and action (i.e. bodily self-awareness); awareness of one's own mental states (i.e. mental or experiential self-awareness); awareness of one-self as perceived by others, or as a member of a social group such as a family, team, or institution (i.e. social self-awareness); awareness of one-self as a persistent character in the narratives told by oneself and others (i.e. narrative self-awareness). This list is far from exhaustive, and further, each listed notion is subject to further disambiguation. Hence, although on many theories self-consciousness is tightly related to phenomenal consciousness, proposals to this effect can vary greatly in their meaning and their implications for which animals might be conscious.