With the exception of a few historical examples such as Incan, Hawaiian, and ancient Egyptian royalty, incest taboos universally prohibit sexual relations between which members of a group?

Question

Quizplus · Accepted Answer

Incest taboos universally prohibit sexual relations between parents and children and siblings. Although cousin marriage is allowed in some cultures, first and second cousin marriages are also taboo in many societies. Half-siblings and parallel cousins are not universally prohibited from sexual relations.

With the Exception of a Few Historical Examples Such as Incan