Multiple proposed determinants of the long-term historical shift in marriage preference from polygynous to monogamous unions are tested simultaneously using data on a worldwide sample of 186 pre-industrial societies. Since the diffusion of monogamy though conquest and population migration is well documented, we employ network autocorrelation regression models that include the cultural transmiss...

Socially imposed monogamy in humans is an evolutionary puzzle because it requires costly punishment by those who impose the norm. Moreover, most societies were--and are--polygynous; yet many larger human societies transitioned from polygyny to socially imposed monogamy beginning with the advent of agriculture and larger residential groups. We use a simulation model to explore how interactions b...

Sexual selection is considered a potent evolutionary force in all sexually reproducing organisms, but direct tests in terms of experimental evolution of sexual traits are still lacking for simultaneously hermaphroditic animals. Here, we tested how evolution under enforced monogamy affected a suite of reproductive traits (including testis area, sex allocation, genital morphology, sperm morpholog...

Letter to the Editor

We consider multipartite states of qubits and prove that their bipartite quantum entanglement, as quantified by the concurrence, satisfies a monogamy inequality conjectured by Coffman, Kundu, and Wootters. We relate this monogamy inequality to the concept of frustration of correlations in quantum spin systems.

We thank Alan Dixson (1) for his interest in our paper (2). Unfortunately, he seems to have misread it. First, contrary to Dixson’s claim, we did not conflate callitrichid “monogamy” with obligate monogamy in other primates, like gibbons and the small cebids. We note that these were conflated in Lukas and Clutton-Brock’s (3) recent report on the evolution of monogamy but not in our paper. Dixso...

Abstract This article analyses how monogamy, polyamory and other forms of non-monogamy are displayed, interpreted debated among LGBT groups. Is there a defence affective sexual multiplicity or does an endorsement monogamy predominate, in order to claim greater legitimacy? The study was conducted between 2012 2017, based on ethnographic research carried out with virtual I argue that is no consen...

A new study shows that biparental care in frogs is more likely to evolve when tadpoles are reared under environmentally harsh conditions. Biparental care facilitates both social monogamy and genetic monogamy; frogs that work together to raise their offspring have higher mating fidelity to one another.

Vesicular neurotransmitter transporters package transmitter into the lumen of synaptic vesicles for quantal release. However, the number of transporters that localize to each vesicle is not known. In this issue of Neuron, a study by Daniels et al. using the Drosophila neuromuscular junction and mutations of the vesicular glutamate transporter suggests that one transporter may suffice to fill ea...