The Female of the Species (poem) says Kipling, has the greater determination - the greater courage and single-mindedness in the pursuit of the important in life. "The Female of the Species" and its refrain have been used as a catchphrase in other works. In 1928 the Bulldog Drummond story "The Female of the Species" may have lifted the title. This story was adapted as the 1967 European spy movie "Deadlier Than the Male". Scott Walker of The Walker Brothers wrote and performed the accompanying musical theme and scored a minor hit on the UK Singles Chart in 1966. In 1996 the English pop group Space released
Social monogamy in mammalian species was significantly lower in monogamous species than in polyandrous ones. However, there still needs to be more empirical evidence in order to further test this hypothesis. Sexual dimorphism relates to the phenotypic differences between a male and a female of the same species, often referring to the species' body size. Monogamous males tend to be smaller compared to females, which results in sexual competition between the male candidates for a larger female. Comparing to monogamous species, polygynous species tend to display more sexual dimorphism, or difference in body size; it is believed that sexual dimorphism could be an evolutionary consequence