ABSTRACT The literature regarding the Dark Triad of personality (i.e., narcissism, psychopathy, and Machiavellianism) has expanded rapidly during recent years with researchers evaluating the connections that these personality traits have with a variety of phenomena including philosophical beliefs and moral decision-making. The goal of the present study was to replicate and extend recent research concerning the associations that the Dark Triad had with anti-natalist beliefs (i.e., that it is morally wrong to procreate) by using multidimensional conceptualizations of these dark personality (...) traits and examining whether primal world beliefs mediate the associations that these dark personality traits have with anti-natalist beliefs. The results indicate that, as expected, specific dark personality traits (i.e., antagonistic narcissism, psychopathic meanness, psychopathic disinhibition, and antagonistic Machiavellianism) were positively associated with certain anti-natalist beliefs. In addition, the associations that these dark personality traits had with anti-natalist beliefs were sometimes mediated by the safe primal world belief (i.e., perceiving the world to be non-threatening and cooperative) and the enticing primal world belief (i.e., perceiving the world to be irresistibly fascinating). Discussion focuses on the implications of these results for the role that primal world beliefs play in the connections between dark personality traits and anti-natalist beliefs. (shrink)