Parents know the transformative nature of having and caring for a child. Among many
mammals, giving birth leads from an aversion to infant stimuli to irresistible attraction. Here …

Gonadotropins and their receptors' genes carry several single-nucleotide polymorphisms
resulting in endocrine genotypes modulating reproductive parameters, diseases, and …

This chapter provides an overview of life history theory (LHT). LHT conceptualizes specific
allocation tradeoffs in terms of three broad, fundamental trade‐offs: the present‐future …

With a secure foundation in basic research across mammalian species in which fathers
participate in the raising of young, novel brain‐imaging approaches are outlining a set of …

The purpose of this paper is to review field studies of human male hormones and
reproductive behavior. We first discuss life history theory and related conceptual …

What motives do people prioritize in their social lives? Historically, social psychologists,
especially those adopting an evolutionary perspective, have devoted a great deal of …

Owing to humans' unique life history pattern, particularly comparatively short interbirth
intervals, early weaning, and prolonged support of multiple dependents, human females …

The steroid testosterone (T) and neuropeptide oxytocin (OT) have each been implicated in
the development of parental care in humans and animals, yet very little research addressed …

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 …

Men have the capacity to respond to the transition to fatherhood and nurturant investments
in their partners and children with shifts in neuroendocrine function (such as decreased …