HOMO FALLABILIS
Because of our unique capacity among species to conceive of ideals of behavior and to set aspirational goals for ourselves, we are also the only culpable species, able to fall short of what we aspire to be, inevitably.
Hence, no other species can feel guilt and remorse, the stings of conscience, the consequence of our self-consciousness as Homo sapiens sapiens, aware of our own awareness and thus of our fallability.
*