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Study shows how money matters in dual-income relationships

A new study by University of Cincinnati researchers found that men's sense of fulfillment at work is linked to their partners' views on money. Couples who align on the values of money tend to have higher job satisfaction, while those with differing perspectives experience lower job fulfillment.

Humans rank between meerkats and beavers in monogamy ‘league table’

A recent study published by the University of Cambridge ranks species based on their levels of exclusive mating. Humans fall between meerkats and beavers in terms of monogamy rates. The study analyzed proportions of full versus half-siblings across various mammal species, including humans. This approach provides a more direct measure o...

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Polygamy is (not) for the birds

Lekking, a mating system where males display for females without forming lasting bonds, is found to be remarkably stable and rarely evolves into other systems. In contrast, resource-defense polygamy is identified as fragile and frequently reverts to monogamy, often associated with higher extinction rates.

Why the powerful are more likely to cheat

A new study finds that those who feel powerful in their relationships are less dependent on others, think more highly of themselves, and are more confident that they are desirable. This can lead to a higher interest in alternative partners and a greater willingness to engage in infidelity.

Apple iPhone 17 Pro

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Jealousy – we understand our own sex best

A study by Norwegian University of Science and Technology reveals that men are more jealous of sexual infidelity, while women are more jealous of emotional infidelity. People surprisingly accurately perceive jealousy responses within their own sex but struggle to understand the opposite sex.

One in three men open to having more than one partner, study shows

A new study by Swansea University found that nine percent of men and five percent of women in the UK are open to sharing a partner or being shared with someone else. This suggests a significant disparity between men's and women's attitudes towards non-monogamous relationships.

Married people who cheat don’t regret it

A recent study published in Archives of Sexual Behavior found that married individuals who cheat report high levels of sexual and emotional satisfaction, but low levels of regret. The survey of over 2,000 Ashley Madison users revealed that fundamental problems with the relationship are often less cited as motivations for infidelity.

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Growing risks of STIs in over-45s

A study has found that middle-aged and older adults are at risk of contracting STIs due to negative attitudes and limited knowledge about their sexual health needs. The report's findings highlight four critical areas where interventions can address gaps in current healthcare provision: awareness, access, knowledge, and stigma.

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Do open relationships really work?

A team from the University of Rochester found that non-monogamous relationships succeed when all parties are comfortable with each other. Monogamous and consensual non-monogamous groups reported high levels of functioning in their relationships, while partially open and one-sided non-monogamous groups showed lower levels of functioning.

Bateman's cowbirds

A study by researchers at the University of Illinois found that male cowbirds exhibit greater variation in offspring production, conforming to Bateman's Principle. Surprisingly, approximately 75% of cowbirds were monogamous for the entire breeding season despite not providing food or resources to their young.

€2.5 million for project tackling sexual health in the over-45s

A European project called SHIFT aims to engage the over-45s in discussions about sexual health, improving their understanding and access to services. The project links 11 organizations across Europe and is expected to reach 150,000 people and increase awareness by 50%.

Putative signature of monogamy

Researchers identified 24 candidate genes associated with monogamy in vertebrates, including heightened expressions of those involved in neural development, synaptic activity, learning, and memory. This suggests a putative gene expression signature common to some vertebrate species.

Successful mouse couples talk out infidelity in calm tones

A study by researchers at the University of Wisconsin-Madison found that California mice who communicate calmly after infidelity are more likely to produce a litter of mouse pups and have good fathers. The quality of their conversations helps predict pair bond success, with less aggressive vocalizations indicating a stronger bond.

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Oxytocin leads to monogamy

Researchers found that oxytocin administration increases attractiveness of partner and strengthens monogamy by stimulating brain's reward center. The study suggests a biological mechanism for maintaining love relationships.

Evolution of monogamy in humans the result of infanticide risk

The study reveals that male infanticide is the key driver of monogamy in humans and other primates. By caring for young, fathers can protect infants from rival males and share childcare burdens. This leads to a reduction in infant dependency and allows females to reproduce more quickly.

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Monogamy evolved as a mating strategy

Social monogamy emerged as a mating strategy due to male competition for resources. Males with limited access to food rely on monogamy to increase reproductive success.

Understanding why male mammals choose monogamy

Researchers found that social monogamy in male mammals arose from ancestral species with solitary females, where males formed pairs to guard their mates. This approach explains the spatial distribution of females and provides insight into the evolution of paternal care.

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Monogamy reduces major social problems of polygamist cultures

A new study by the University of British Columbia finds that monogamous marriage has lower levels of crime, violence, poverty, and gender inequality compared to polygynous societies. The study suggests that institutionalized monogamy reduces male competition, leading to improved child welfare and increased gender equality.

How much sex is enough?

Research published in BMC Evolutionary Biology shows that polygamous mice produce more fertile offspring due to increased sperm competitiveness. After 12 generations of competitive selection, polygamous males outperformed monogamous males in both paternity and fertility rates.

Young couples can't agree on whether they have agreed to be monogamous

A new study of 434 young heterosexual couples found that many are misjudging their partners' risk behaviors and failing to communicate effectively about monogamy. Almost 30% of those who claimed to have an explicit agreement broke it, with at least one partner having sex outside the relationship.

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