Disentangling the Correlated Evolution of Monogamy and Cooperation

Monogamy and cooperation tend to correlate in evolutionary time. Although traditionally attributed to increased sibling relatedness, a variety of factors could cause this correlation. Monogamy and cooperation are favored by the same selective pressures and could be indirectly linked in certain environments. Adaptations resulting from antecedent monogamy could create selective pressure for the subsequent evolution of cooperation. Ancestral...