Applying socioendocrinology to evolutionary models: Fatherhood and physiology

Owing to humans' unique life history pattern, particularly comparatively short interbirth intervals, early weaning, and prolonged support of multiple dependents, human females have greater reproductive value and higher lifetime fertility, on average, than do their Great Ape counterparts. As hominin females began weaning their young early and "stacking" dependents of various ages, they must have had cooperative allomaternal care partners already...