Abstract
Young conspecifics are killed in many animal species, often by unrelated males. The role that females — particularly mothers — play in harming infants is often overlooked, as it appears an evolutionary paradox. Life-history theory offers potential explanations, as females are under pressure to time births optimally, produce an optimal number of offspring and secure paternal investment. Furthermore, socio-cultural circumstances across human societies may favour sex-specific infanticide. These constraints can lead mothers to terminate pre- or post-natal investment in current offspring. Incorporating evolutionary theory in policy making may offer opportunities to assess which measures are likely to reduce the rate of maternally committed infanticide.
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