Coparenting refers to a parenting situation where adults share the duties of parenting a child. Coparents may include a variety of configurations, including a mother and a father, two mothers, two fathers, a parent with an adult sibling or grandparent, or a parent and another adult relative. The coparent relationship differs from an intimate relationship between adults in that it focuses solely on the child. The equivalent term in evolutionary, where parental investment is provided by both the mother and father.The original meaning of coparenting was mostly related to nuclear family. However, since the United Nations Convention on the Rights of the Child, 20 November 1989, the principle that a child has to continue to maintain a strong relationship with both parents, even if separated, has become a more recognized right. Thus, the concept of coparenting was extended to divorced and separated parents and to parents who have never lived together.