Beliefs such as these caution anthropologists against narrow biogenetic explanations for the incest taboo and pose severe impediments to a universal definition. 類(lèi)似的這種信仰,也提醒了人類(lèi)學(xué)家不能對亂倫禁忌僅從生物遺傳的角度做出一方面的狹隘解釋?zhuān)舱蛉绱?,亂倫禁忌很難獲得一個(gè)普遍的定義。