Muslims have been destroying histories of the countries they have occupied. The Muslims first destroy the civilization/culture and then rape the women (after killing men). The resulting population is genetically alien on the male lineage. Then the Muslims follow extreme endogamy, often with first cousins. That results in the cultural destruction as a result of Koran and the generic destruction as a result of incest.
Mecca!
I think I remember reading baboons do the same.