Marco Francesconi, Christian Ghiglino, Motty Perry, 11 February 2010

Why do people form long-lasting marital unions? This column presents new insights on what makes a family stick together. Families dominate more promiscuous pairs, in the sense that they can achieve greater survivorship and enhanced genetic fitness. The column suggests that this might provide an evolutionary explanation for the origin of religion as an institution to protect the family.

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