Deadlier Than the Male (song) Deadlier Than the Male (song) "Deadlier Than the Male" is a song written by American singer-songwriter Scott Walker under the name Scott Engel with UK record producer Johnny Franz. The song was first recorded and released by Walker's pop group The Walker Brothers as their eighth single in 1966. The accompaniment was directed by Reg Guest. The song was the title track for the 1967 British action film "Deadlier Than the Male" which featured the character of Bulldog Drummond. The song's title is a reference to the 1911 Rudyard Kipling poem "The Female of the Species," which includes the line,
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