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University of Washington


Households using more of the most popular WIC food benefits stay in the program longer, UW study finds

A new study by the University of Washington found that households redeeming higher amounts of popular WIC food categories are less likely to drop out of the program. The research identified a link between increased redemption rates and lower risk of discontinuation, with fruits, vegetables, eggs, and whole milk being key categories.

SourceUniversity of Washington·JournalJAMA Network Open·TypeData/statistical analysis·DateDec 15, 2025

Counting salmon is a breeze with airborne eDNA

Researchers at the University of Washington successfully tracked salmon populations using airborne eDNA, finding that the airborne DNA concentration fluctuated with visual counts reported by the hatchery. The technique links air, water, and fish, providing a valuable tool for population health monitoring and management.

SourceUniversity of Washington·JournalScientific Reports·TypeExperimental study·DateNov 26, 2025

Sharper, straighter, stiffer, stronger: Male green hermit hummingbirds have bills evolved for fighting

Researchers found that male green hermit hummingbirds' bills are straighter (3%) and sharper (69%) than females', allowing for more efficient energy expenditure and stress resistance during fights. These differences were driven by the birds' tendency to fight for mates, rather than solely by ecological factors.

SourceUniversity of Washington·JournalJournal of Experimental Biology·DateNov 21, 2025

Carbon-rich waters are becoming even more acidic as atmospheric CO2 levels rise

A new study reveals that ocean acidification is accelerating at a rate outpacing atmospheric CO2 levels, with the Northeastern Pacific Ocean experiencing rapid acidification. The research analyzed coral skeletons from the past century, showing that CO2 has been accumulating in North American waters faster than in the atmosphere.

SourceUniversity of Washington·JournalNature Communications·TypeExperimental study·DateNov 13, 2025

The chilling effect of air pollution

A new study shows that reducing air pollution has decreased the brightness of marine clouds, leading to accelerated warming. Scientists attribute 70% of this change to aerosols, and researchers are exploring ways to make clouds shinier without polluting the air.

SourceUniversity of Washington·JournalNature Communications·TypeData/statistical analysis·DateNov 5, 2025

UW-led study links wildfire smoke to increased odds of preterm birth

A new study led by the University of Washington analyzed data from over 20,000 births and found that pregnant people exposed to wildfire smoke were more likely to give birth prematurely. The risk was highest in mid-pregnancy and peak exposure levels above 10 micrograms per cubic meter were associated with elevated risks.

SourceUniversity of Washington·JournalThe Lancet Planetary Health·TypeData/statistical analysis·DateNov 3, 2025

New ‘liquid metal’ composite material enables recyclable, flexible and reconfigurable electronics

A new composite material made from a recyclable polymer infused with microscopic droplets of liquid metal alloy can be broken down through a simple chemical process, freeing the metal for reuse. The material also has self-healing properties, allowing it to be cut, rearranged, and bonded back together using only heat and pressure.

SourceUniversity of Washington·JournalAdvanced Functional Materials·DateOct 22, 2025

After schools instituted universal free meals, fewer students had high blood pressure, UW study finds

A new study by the University of Washington found that universal free meals in schools are associated with a 2.71% decrease in the proportion of students with high blood pressure. The study also showed a decrease in students' average diastolic blood pressure. Improved nutrition of school meals may have played a role in these findings.

SourceUniversity of Washington·JournalJAMA Network Open·TypeData/statistical analysis·DateSep 29, 2025

Longer body size means more female calves for baleen whale moms

Researchers tested a popular evolutionary theory by comparing maternal length and fetal sex in over 100,000 whales. They found that the fetal sex ratio skews female for longer body size, suggesting that female calves benefit more from heritable fitness than males do. The findings contradict the Trivers-Willard hypothesis.

SourceUniversity of Washington·JournalProceedings of the Royal Society B Biological Sciences·TypeData/statistical analysis·DateSep 23, 2025

Inconsistent charging stations hinder EV adoption

A survey by University of Washington researchers found that participants with a negative view of public charging were less likely to choose an electric vehicle than those with a moderate view. Participants demanded strikingly large concessions, such as a 30% discount or 366 extra miles of range, before choosing an EV.

SourceUniversity of Washington·JournalTransport Policy·DateSep 23, 2025

Integrating human and animal health care increases access to services for homeless youth

The Seattle One Health Clinic offers free veterinary care alongside medical services, increasing access to preventative medical care for both people and their pets. The integrated approach has been shown to build trust and provide holistic care, with nearly 80% of visits resulting in clients receiving human health care.

SourceUniversity of Washington·JournalJournal of Primary Care & Community Health·TypeObservational study·DateAug 4, 2025

Q&A: What universities can learn about navigating ideological tension from the history of same-sex domestic partner benefits

Researchers found that public universities in conservative states adjusted their policy decisions and justification frames to reduce backlash. In contrast, institutions in more progressive states often cited social justice arguments and framed their decisions around fairness and inclusion. These findings offer valuable lessons on how o...

SourceUniversity of Washington·JournalOrganization Science·DateMay 28, 2025

Children exposed to higher ozone levels early in life are more likely to develop asthma

A recent study published in JAMA Network Open has found a possible link between higher ozone levels in early childhood and an increased risk of developing asthma. Children exposed to higher ozone levels in their first two years of life were significantly more likely to be diagnosed with asthma or wheezing at ages 4-6, but not at ages 8-9.

SourceUniversity of Washington·JournalJAMA Network Open·TypeData/statistical analysis·DateApr 2, 2025

Unraveling the mystery of the missing blue whale calves

Researchers propose that timing hypothesis explains the mystery of missing blue whale calves, where births occur in fall and winter, and calves are weaned before returning to feeding areas. This explanation offers alternative insight into high pregnancy rates vs. low sightings of mother-calf pairs.

SourceUniversity of Washington·JournalEndangered Species Research·TypeObservational study·DateFeb 21, 2025

Coffee grounds and Reishi mushroom spores can be 3D printed into a compostable alternative to plastics

A team of researchers at the University of Washington has developed a novel method for 3D printing objects using a mixture of coffee grounds, brown rice flour, and Reishi mushroom spores. The resulting material is compostable, lightweight, and strong, with a density similar to that of polystyrene foam.

SourceUniversity of Washington·Journal3D Printing and Additive Manufacturing·DateFeb 18, 2025

Some species of baleen whales avoid attracting killer whales by singing too low to be heard

Baleen whale species that flee from killer whales produce calls at deep frequencies undetectable to their predators, while others sing higher-frequency songs that are easily heard. This 'flight' vs 'fight' difference influences all aspects of baleen whale behavior, from migration patterns and communication to mating and feeding habits.

SourceUniversity of Washington·JournalMarine Mammal Science·TypeLiterature review·DateFeb 6, 2025

Q&A: How rate of CO2 rise can affect a global ocean current

A recent University of Washington study found that a slower increase in atmospheric carbon dioxide levels has less impact on the Atlantic Ocean's circulation. The research, published in PNAS, suggests that this slowdown allows the ocean system more time to adapt to rising CO2 levels and mitigates its effects.

SourceUniversity of Washington·JournalProceedings of the National Academy of Sciences·TypeComputational simulation/modeling·DateJan 28, 2025

Panorama of our nearest galactic neighbor unveils hundreds of millions of stars

The Hubble Space Telescope has captured a panoramic view of the Andromeda Galaxy, unveiling hundreds of millions of stars and providing new clues to its evolutionary history. The galaxy's unique structural features, such as coherent streams of stars, suggest a more active recent star formation and interaction history than the Milky Way.

SourceUniversity of Washington·JournalThe Astrophysical Journal·TypeObservational study·DateJan 17, 2025