Original sentence: Contemporary data suggests that modern infanticide is usually brought about by a combination of postpartum depression and a psychological unreadiness to raise children.In cultures where childbearing is strongly tied to social structures, infants born outside of those structures (illigitimate children, children of incest, children of cross-caste relationships, and so forth) may be killed by family members to conceal or atone for the violation of taboo.In cultures where different value is placed on male and female children, sex-selective infanticide may be practiced simply to increase the proportion of children of the preferred sex, usually male.It is also attributed, in some cases, to the desire of unwed, underaged parents to conceal their sexual relations and/or avoid the responsibility of childrearing.Many societies only practiced simple infanticide and regarded child sacrifice as morally repugnant.Other anthropologists have suggested a variety of largely cutlure-specific reasons for infanticide.Some anthropologists have suggested other causes for infanticide in non-Western societies
Edited sentence: Anthropologists have suggested other causes for infanticide in non-Western societies.Contemporary data suggests that it is usually brought about by a combination of postpartum depression and a psychological unreadiness to raise children.The Greeks and Romans only practiced simple infanticide and regarded child sacrifice as morally repugnant