Infant Killing and Male Reproductive Strategies in Langurs [Presbytis entellus)

Although published reports of infant killing in the common langur [Presbytis entellus) appeared as early as the mid-1960s, it was not until 1974 when Hrdy proposed the sexual selection hypothesis that this phenomenon gained widespread attention. Earlier reports by Sugi­ yama (1965b, 1966) and Mohnot (1971a) were primarily of concern to the relatively small community of people studying langurs, and while these accounts were received with interest, the significance of infant killing was generally viewed as limited and only relevant to special conditions.