Family denotes a group of people affiliated by consanguinity, affinity or co-residence.
A consanguineal family consists of a parent and his or her children, and other people. This kind of family is common where mothers do not have the resources to rear their children on their own, and especially where property is inherited.
A matrifocal family consists of a mother and her children. Generally, these children are her biological offspring, although adoption of children is a practice in nearly every society. This kind of family is common where women have the resources to rear their children by themselves, or where men are more mobile than women.