Human reproductive behavior, life history, and the challenge hypothesis: a 30-year review, retrospective and future directions
Abstract The Challenge Hypothesis (Wingfield et al., 1990) originally focused on adult male
avian testosterone elevated in response to same-sex competition in reproductive contexts …
avian testosterone elevated in response to same-sex competition in reproductive contexts …
Prenatal testosterone synchrony in first-time parents predicts fathers' postpartum relationship quality
There is evidence that men's testosterone levels decline across the transition to fatherhood
and that this decline may reflect fathers' investment in the new family. There is also emerging …
and that this decline may reflect fathers' investment in the new family. There is also emerging …
Fatherhood, egalitarianism, and child health in two small‐scale societies in the Republic of the Congo
Objectives The study goals were to (a) characterize the cultural model of fatherhood among
the BaYaka, a community of egalitarian foragers in the Republic of the Congo;(b) test if …
the BaYaka, a community of egalitarian foragers in the Republic of the Congo;(b) test if …
Sex differences in daily activity intensity and energy expenditure and their relationship to cortisol among BaYaka foragers from the Congo Basin
Objectives The pooling of energetic resources and food sharing have been widely
documented among hunter‐gatherer societies. Much less is known about how the energetic …
documented among hunter‐gatherer societies. Much less is known about how the energetic …
Evidence for an adolescent sensitive period to family experiences influencing adult male testosterone production
Across vertebrates, testosterone is an important mediator of reproductive trade-offs, shaping
how energy and time are devoted to parenting versus mating/competition. Based on early …
how energy and time are devoted to parenting versus mating/competition. Based on early …
The postnatal testosterone rebound in first‐time fathers and the quality and quantity of paternal care
R Corpuz, S D'Alessandro… - Developmental …, 2021 - Wiley Online Library
In human males, testosterone (T) decreases in the period following the birth of offspring. This
decline has been widely interpreted as a facultative neuroendocrine response that facilitates …
decline has been widely interpreted as a facultative neuroendocrine response that facilitates …
Gender differences in BaYaka forager sleep-wake patterns in forest and village contexts
Sleep studies in small-scale subsistence societies have broadened our understanding of
cross-cultural sleep patterns, revealing the flexibility of human sleep. We examined sleep …
cross-cultural sleep patterns, revealing the flexibility of human sleep. We examined sleep …
Sharing and caring: Testosterone, fathering, and generosity among BaYaka foragers of the Congo Basin
Humans are rare among mammals in exhibiting paternal care and the capacity for broad
hyper-cooperation, which were likely critical to the evolutionary emergence of human life …
hyper-cooperation, which were likely critical to the evolutionary emergence of human life …
Are fathers a good substitute for mothers? Paternal care and growth rates in Shodagor children
KE Starkweather, MH Keith, SP Prall… - Developmental …, 2021 - Wiley Online Library
Biparental care is a hallmark of human social organization, though paternal investment
varies between and within societies. The facultative nature of paternal care in humans …
varies between and within societies. The facultative nature of paternal care in humans …
Hormone physiology and sleep dynamics among BaYaka foragers of the Congo Basin: Gendered associations between nighttime activity, testosterone, and cortisol
Sleep quality is an important contributor to health disparities and affects the physiological
function of the immune and endocrine systems, shaping how resources are allocated to life …
function of the immune and endocrine systems, shaping how resources are allocated to life …