In view of the frequent occurrence of modern domestic groups that do not consist of, or contain, an exclusive pair-bonded father and mother, I cannot see why anyone should insist that our ancestors were reared in monogamous nuclear families and that pair-bonding is more natural than other arrangements.
Marvin Harris, Our Kind: Who We Are, Where We Came From, Where We Are Going
ancestors, families, family, family-relationships, monogamous, monogamy, nuclear-families, pair-bond