Child Rearing Is Unequal Between The Sexes - And That Is Due To Evolution

Caring for offspring is unequal between the sexes in many animal species and a new study suggests evolution is the culprit. Making babies is one of the fundamental conflicts of interest between the sexes. Care by either partner is beneficial to both partners as it increases the health and survival prospects of the common young, while providing care is costly only to the caring individual. As a result, each partner does best in a situation where most of the care is provided by the other partner--an outcome that is clearly impossible. read more

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