Human morality is distinctive

The behaviours Flack and de Waal describe as origins of human morality lack the most essential features of the human ethical competence; namely, application of the concepts good and bad to events, the capacities for guilt and empathy for another's state, and the ability to suppress actions that would compromise the self's virtue. These serious differences between apes and humans challenge the suggestion that primate behaviour lies on a continuum with human morality.