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What makes an opera singer stand out? New research decodes 'black box' of opera evaluation

A new study found that vibrato is the most significant vocal attribute in determining an opera singer's score, while acoustic features like SPR and HNR have a greater impact than previously thought. The research provides objective insights into how judges evaluate performances and offers tools for vocal training.

SourceKeio University Global Research Institute·JournalFrontiers in Psychology·TypeData/statistical analysis·DateSep 5, 2025

4,000-year-old teeth record the earliest traces of people chewing psychoactive betel nuts

Researchers discovered traces of betel nut compounds in dental calculus from a 4,000-year-old burial site in Thailand, shedding light on the ancient practice. The study used new methods to analyze ancient teeth and found evidence of psychoactive plant use that was previously invisible to archaeologists.

SourceFrontiers·JournalFrontiers in Environmental Archaeology·TypeExperimental study·DateJul 31, 2025

Study reveals importance of culture in intimate partner violence recovery

A recent study from the University of California, Riverside, and the University of Wisconsin-Madison emphasizes the need for culturally responsive approaches to support healing among Latina college students who have experienced intimate partner violence. Resilient coping and social support were found to be strong predictors of well-being.

SourceUniversity of California - Riverside·JournalViolence Against Women·TypeSurvey·DateJul 30, 2025

Cultural values shape tourists’ view of eco-friendly B&Bs

A cross-cultural study of 800 people from 37 countries found that tourists from rule-based cultures like China and India support green features in B&Bs more strongly. In contrast, Western cultures prioritize rooftop gardens over eco-friendly facilities. The study highlights the importance of considering cultural values when marketing s...

SourceUniversity of South Australia·JournalConsumer Behavior in Tourism and Hospitality·TypeSurvey·DateJul 27, 2025

Beyond the alpha male

A new study resolves why male-female power asymmetries vary across primate societies, finding that contests between males and females are common. The research reveals that female empowerment often relies on alternative pathways, such as reproductive strategies to gain control over matings.

SourceMax Planck Institute for Evolutionary Anthropology·JournalProceedings of the National Academy of Sciences·DateJul 7, 2025

Cool is cool wherever you are

Researchers found that cool people have similar personalities, with traits such as extraversion, hedonism, and power being universally perceived. The study explored how cool people differ from uncool and good people, finding some overlap in traits but also distinct characteristics.

SourceAmerican Psychological Association·JournalJournal of Experimental Psychology·TypeExperimental study·DateJun 30, 2025

What animal bones reveal about life on the medieval Liao frontier

The discovery of thousands of animal bones at a remote garrison site in northeastern Mongolia sheds new light on the lives of soldiers and civilians who lived along the medieval Liao Empire's long wall. The analysis suggests a largely self-sufficient pastoral economy, with evidence of herding, hunting, fishing, and seasonal climate var...

SourceThe Hebrew University of Jerusalem·JournalArchaeological Research in Asia·TypeObservational study·DateJun 25, 2025

Name diversity sheds light on ancient societies

Researchers analyzed personal names from archaeological findings to detect patterns of identity, openness, and change in ancient Hebrew societies. They found that the Kingdom of Israel had a more diverse naming landscape than Judah, indicating a more open and cosmopolitan society.

SourceThe Hebrew University of Jerusalem·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateMay 12, 2025

Archaeologists measured and compared the size of 50,000 ancient houses to learn about the history of inequality -- they found that it’s not inevitable

Researchers found that inequality is widespread but not inevitable, with varying levels of economic disparity across time and space. The study used house size distributions as a metric for wealth inequality, revealing patterns and trends that cross-cut time and space.

SourceField Museum·JournalProceedings of the National Academy of Sciences·DateApr 14, 2025

Earliest deep-cave ritual compound in Southwest Asia discovered

Researchers from Case Western Reserve University discovered a large cavern in Manot Cave that was used as a gathering space for rituals, possibly enhancing social cohesion. The site features an engraved rock with a turtle-shell design, contemporaneous with some of the oldest cave paintings in France.

SourceCase Western Reserve University·JournalProceedings of the National Academy of Sciences·TypeObservational study·DateDec 9, 2024

With Indigenous heritage sites under threat, KFN-SFU collaborative study identifies pathways to enforce Nation-led cultural heritage protection

A new research collaboration between the K’ómoks First Nation and Simon Fraser University highlights how Indigenous cultural heritage policies can protect archaeological sites threatened by development. The study found that the K’ómoks First Nation’s Cultural Heritage Policy provides a pathway to reconciliation and greater certainty fo...

SourceSimon Fraser University·JournalFrontiers in Environmental Archaeology·DateDec 4, 2024

Being part of a ‘civilization’ only reduces violence if you’re a woman in ancient Andes populations

A new study suggests that being part of a 'civilization' reduces violence for women, but not men, in ancient Andes populations. The research, published in the Proceedings of the National Academy of Sciences, analyzed data from 8,607 adults over 3,000 years and found that women experienced reduced lethal violence in organized states.

SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·TypeData/statistical analysis·DateOct 21, 2024

Local food production saves costs and carbon

A study by Max Planck Institute for Evolutionary Anthropology found that local food harvesting is more economically-efficient and less carbon-intensive than industrial food production in the Canadian Arctic. Replacing locally-harvested foods with market substitutes would cost over $3 million per year and emit over 1,000 tonnes of CO2-e...

SourceMax Planck Institute for Evolutionary Anthropology·JournalProceedings of the National Academy of Sciences·DateJul 29, 2024