Monogamy evolved as a mating strategy: New research indicates that social monogamy evolved as a result of competition

Social monogamy, where one breeding female and one breeding male are closely associated with each other over several breeding seasons, appears to have evolved as a mating strategy, new research reveals. It was previously suspected that social monogamy resulted from a need for extra parental care by the father.

Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/i...