Department of Biology
January 27, 2021
On nights before a full moon, people go to bed later and sleep less, study shows
Sleep cycles in people oscillate during the 29.5-day lunar cycle: In the days leading up to a full moon, people go to sleep later in the evening and sleep for shorter periods of time. The team, led by researchers at the University of Washington, observed these variations in both the time of sleep onset and the duration of sleep in urban and rural settings — from Indigenous communities in northern Argentina to college students in Seattle, a city of more than 750,000. They saw the oscillations regardless of an individual’s access to electricity, though the variations are less pronounced in individuals living in urban environments.
December 7, 2020
The Smellicopter is an obstacle-avoiding drone that uses a live moth antenna to seek out smells
A team led by the UW has developed Smellicopter: an autonomous drone that uses a live antenna from a moth to navigate toward smells. Smellicopter can also sense and avoid obstacles as it travels through the air.
December 3, 2020
Researchers discover how bean plants fend off famished foes
A team led by scientists at the University of Washington and the University of California, San Diego has discovered that cowpeas — a type of bean plant — harbor receptors on the surface of their cells that can detect a compound in caterpillar saliva and initiate anti-herbivore defenses.
November 24, 2020
Study shows plant extinction is more common than previously realized
A new study reveals that 65 plant species have gone extinct in the continental United States and Canada since European settlement, more extinctions than any previous scientific study has ever documented.
November 2, 2020
No social distancing in the Cretaceous: New study finds earliest evidence for mammal social behavior
A new study led by paleontologists at the University of Washington indicates that the earliest evidence of mammal social behavior goes back to the Age of Dinosaurs. A multituberculate that lived 75.5 million years ago, Filikomys primaevus engaged in multi-generational, group-nesting and burrowing behavior, and possibly lived in colonies.
September 17, 2020
Watching over whales: Online tool detects whales and ships in California’s Santa Barbara Channel in near real-time
Whale Safe — an online tool launched Sept. 17 by scientists at the University of California, Santa Barbara, the University of Washington and other partner institutions — allows users to detect and better protect these endangered animals in the Santa Barbara Channel. It is a mapping and analysis tool to help prevent ships from running into whales.
August 27, 2020
Frequently asked questions: torpor in Antarctic Lystrosaurus
This FAQ discusses evidence for a hibernation-like condition in Lystrosaurus, a mammal relative that lived in the Antarctic portion of Pangea about 250 million years ago. This discovery was enabled by high-resolution of incremental growth marks preserved in the tusks of Lystrosaurus.
Weathering the tough times: Fossil evidence of ‘hibernation-like’ state in 250-million-year-old Antarctic animal
University of Washington scientists report evidence of a hibernation-like state in Lystrosaurus, an animal that lived in Antarctica during the Early Triassic, some 250 million years ago. The fossils are the oldest evidence of a hibernation-like state in a vertebrate, and indicate that torpor — a general term for hibernation and similar states in which animals temporarily lower their metabolic rate to get through a tough season — arose in vertebrates even before mammals and dinosaurs evolved.
August 26, 2020
Mount Everest summit success rates double, death rate stays the same over last 30 years
A new study led by researchers at the University of Washington and the University of California, Davis, finds that the success rate of summiting Mount Everest has doubled in the last three decades, even though the number of climbers has greatly increased, crowding the narrow route through the dangerous “death zone” near the summit. However, the death rate for climbers has hovered unchanged at around 1% since 1990.
July 16, 2020
7 University of Washington researchers elected to the Washington State Academy of Sciences in 2020
Seven scientists and engineers at the University of Washington have been elected to the Washington State Academy of Sciences, according to an announcement July 15 by the academy.
June 25, 2020
Sleep improving for university students under stay-at-home orders
In a study published June 10 in Current Biology, a team from the University of Colorado Boulder and the University of Washington reports that a group of students at CU Boulder generally got more sleep after widespread stay-at-home orders and social distancing guidelines were put into place in mid-March.
June 10, 2020
Passing crucial, challenging introductory chemistry course gives biggest boost to underrepresented students
Researchers examined 15 years of records of student performance, education and demographics for chemistry courses at the University of Washington. They found that underrepresented students received lower grades in the general chemistry series compared to their peers and, if the grade was sufficiently low, were less likely to continue in the series and more likely to leave STEM. But if underrepresented students completed the first general chemistry course with at least the minimum grade needed to continue in the series, they were more likely than their peers to continue the general chemistry series and complete this major step toward a STEM degree.
April 27, 2020
Bacteria that are persistently resistant to one antibiotic are ‘primed’ to become multidrug-resistant bugs
Researchers at the University of Washington and the University of Idaho report that, for a bacterial pathogen already resistant to an antibiotic, prolonged exposure to that antibiotic not only boosted its ability to retain its resistance gene, but also made the pathogen more readily pick up and maintain resistance to a second antibiotic and become a dangerous, multidrug-resistant strain.
April 15, 2020
ArtSci Roundup: Earth Day with the Department of History, Ask Your Farmer, and more
During this time of uncertainty and isolation, find solace in digital opportunities to connect, share, and engage. Each week, we will share upcoming events that bring the UW, and greater community, together online. Many of these online opportunities are streamed through Zoom. All UW faculty, staff, and students have access to Zoom Pro via UW-IT. Earth Day…
March 30, 2020
Faculty/staff honors: Outstanding educator in landscape architecture, Royal Society of Edinburgh corresponding fellowship — and the Green Rat Clingfish takes a bow
Recent honors to University of Washington faculty and staff have come from the Council of Educators in Landscape Architecture, the Royal Society of Edinburgh and the World Register of Marine Species.
March 9, 2020
Underrepresented college students benefit more from ‘active learning’ techniques in STEM courses
Students from different backgrounds in the United States enter college with equal interest in STEM fields — science, technology, engineering and mathematics. But that equal interest does not result in equal outcomes. Six years after starting an undergraduate STEM degree, roughly twice as many white students finished it compared to African American students. A new…
Climate change at Mount Rainier expected to increase ‘mismatch’ between visitors and iconic wildflowers
The wildflowers of Mount Rainier’s subalpine meadows, which bloom once the winter snowpack melts, are a major draw for the more than 1 million visitors to this national park in Washington state each spring and summer. But by the end of this century, scientists expect that snow will melt months earlier due to climate change. New research led by the University of Washington shows that, under those conditions, many visitors would miss the flowers altogether.
March 2, 2020
New honors for scientists studying ‘ecosystem sentinels’
P. Dee Boersma, a UW professor of biology and director of the Center for Ecosystem Sentinels, is a finalist for the 2020 Indianapolis Prize for conservation, to be awarded later this year by the Indianapolis Zoological Society. Sue Moore, a scientist with the center and a UW affiliate professor of biology and of aquatic and fishery sciences, has won the 2020 IASC Medal, also known as the Arctic Medal, from the International Arctic Science Committee.
February 13, 2020
Immune cells consult with neighbors to make decisions
Scientists and physicians have long known that immune cells migrate to the site of an infection, which individuals experience as inflammation — swelling, redness and pain. Now, researchers at the University of Washington and Northwestern University have uncovered evidence that this gathering is not just a consequence of immune activation. Immune cells count their neighbors before deciding whether or not the immune system should kick into high gear.
January 24, 2020
ArtsUW Roundup: Preserving Elephants in the Age of Extinction, Brian Brooks Moving Company, The Best of Everything, and more
This week in the arts, experience a free concert at Benaroya Hall commemorating the 75th Anniversary of the Liberation of Auschwitz, attend a lecture about the story of Shawn Wong’s rediscovery of “No-No Boy,” and more! To learn about more events taking place, visit ArtsUW. Music of Remembrance: Art from Ashes – Free Concert Commemorating the 75th…
January 21, 2020
Mosquitoes are drawn to flowers as much as people — and now scientists know why
Despite their reputation as blood-suckers, mosquitoes actually spend most of their time drinking nectar from flowers. Scientists have identified the chemical cues in flowers that stimulate mosquitoes’ sense of smell and draw them in. Their findings show how cues from flowers can stimulate the mosquito brain as much as a warm-blooded host — information that could help develop less toxic repellents and better traps.
November 26, 2019
Six UW faculty members named AAAS fellows
The American Association for the Advancement of Science has named six faculty members from the University of Washington as AAAS Fellows, according to a Nov. 26 announcement. They are part of a cohort of 443 new fellows for 2019, all chosen by their peers for “scientifically or socially distinguished efforts to advance science or its applications.”
November 12, 2019
New Weill Neurohub will unite UCSF, UC Berkeley, UW in race to find new treatments for brain diseases
With a $106 million gift from the Weill Family Foundation, UC Berkeley, UC San Francisco and the University of Washington have launched the Weill Neurohub, an innovative research network that will forge and nurture new collaborations between neuroscientists and researchers working in an array of other disciplines — including engineering, computer science, physics, chemistry and mathematics — to speed the development of new therapies for diseases and disorders that affect the brain and nervous system.
October 24, 2019
New fossil trove documents recovery of life on Earth after dinosaur-killing asteroid impact
Scientists have discovered an extraordinary collection of fossils that reveal in detail how life recovered after a catastrophic event: the asteroid impact that wiped out the dinosaurs 66 million years ago at the end of the Cretaceous Period.
October 15, 2019
Piranha fish swap old teeth for new simultaneously
With the help of new technologies, a team led by the University of Washington has confirmed that piranhas — and their plant-eating cousins, pacus — lose and regrow all the teeth on one side of their face multiple times throughout their lives. How they do it may help explain why the fish go to such efforts to replace their teeth.
October 2, 2019
Abigail Swann on Science News’ list of 10 young scientists to watch
The University of Washington’s Abigail Swann is honored by Science News on its list of 10 promising early- and mid-career scientists.
Inspired by Northern clingfish, researchers make a better suction cup
A University of Washington team inspired by the clingfish’s suction power set out to develop an artificial suction cup that borrows from nature’s design. Their prototype actually performed better than the clingfish.
September 10, 2019
Tides don’t always flush water out to sea, study shows
Researchers at the University of Washington and the University of Strathclyde report that, in Willapa Bay in Washington state, the water washing over the tidal flats during high tides is largely the same water that washed over the flats during the previous high tide. This “old” water has not been mixed in with “new” water from deeper parts of the bay or the open Pacific Ocean, and has different chemical and biological properties, such as lower levels of food for creatures within the tide flats.
July 18, 2019
Scientists discover how the mosquito brain integrates diverse sensory cues to locate a host to bite
A team, led by researchers at the University of Washington, has discovered how the female mosquito brain integrates visual and olfactory signals to identify, track and hone in on a potential host for her next blood meal: After the mosquito’s olfactory system detects certain chemical cues, the mosquito uses her visual system to scan her surroundings for certain shapes and fly toward them, presumably associating those shapes with potential hosts.
June 20, 2019
Mammals and their relatives thrived, diversified during so-called ‘Age of Dinosaurs,’ researchers show
Old myths state that, during the time of the dinosaurs, mammals and their relatives were small and primitive. But new research shows that, during the time of the dinosaurs, mammals and their relatives actually underwent two large ecological radiations, diversifying into climbing, gliding and burrowing forms with a variety of diets.
May 23, 2019
Hot spots in rivers that nurture young salmon ‘flicker on and off’ in Alaska’s Bristol Bay region
Chemical signatures imprinted on tiny stones that form inside the ears of fish show that two of Alaska’s most productive salmon populations, and the fisheries they support, depend on the entire watershed.
May 2, 2019
Bats evolved diverse skull shapes due to echolocation, diet
In a paper published May 2 in Nature Communications, a University of Washington team reports that two major forces have shaped bat skulls over their evolutionary history — echolocation and diet — generating a huge diversity of skull shapes across 1,300 bat species today.
April 30, 2019
Flowering plants, new teeth and no dinosaurs: New study sheds light on the rise of mammals
A new study published April 30 in the Proceedings of the National Academy of Sciences identified three factors critical in the rise of mammal communities since they first emerged during the Age of Dinosaurs: the rise of flowering plants; the evolution of tribosphenic molars in mammals; and the extinction of non-avian dinosaurs, which reduced competition between mammals and other vertebrates in terrestrial ecosystems.
March 18, 2019
Information School to welcome high school students March 19 for ‘MisInfo Day’ – from ‘Calling BS’ faculty duo
The UW Information School is taking a leading role in helping people better navigate this era of increasing online fakery and falsehood. On March 19, the school will welcome 200-some Seattle-area high school students for “MisInfo Day,” a daylong workshop on how to navigate the misinformation landscape, from Jevin West and Carl Bergstrom, the faculty duo behind “Calling BS in the Age of Big Data.”
March 4, 2019
Fake faces: UWs ‘Calling BS’ duo opens new website asking ‘Which face is real?’
A new website from the UW’s Jevin West and Carl Bergstrom, the duo behind the popular “Calling BS” class, asks viewers to choose which of two realistic face photos is real and which is a complete fake.
February 13, 2019
Parents don’t pick favorites, at least if you’re a Magellanic penguin
Researchers at the University of Washington wanted to know how Magellanic penguin parents in South America balance the dietary demands of multiple chicks. As they report in a paper published Jan. 23 in the journal Animal Behaviour, when a Magellanic penguin parent returns to its nest with fish, the parent tries to feed each of its two chicks equal portions of food, regardless of the youngsters’ differences in age or size.
January 31, 2019
Iguana-sized dinosaur cousin discovered in Antarctica, shows how life at the South Pole bounced back after mass extinction
Scientists have just discovered a dinosaur relative that lived in Antarctica 250 million years ago. The iguana-sized reptile’s genus name, Antarctanax, means “Antarctic king.”
January 2, 2019
The number of single male Magellanic penguins is rising at this breeding colony. Here’s why.
Female Magellanic penguins are more likely to die at sea as juveniles, which has caused a skewed sex ratio of nearly three adult males to every female, as well as population decline of more than 40 percent since 1987 at one of their largest breeding colonies — Punta Tombo in Argentina.
How economic theory and the Netflix Prize could make research funding more efficient
In a paper published Jan. 2 in PLOS Biology, two scientists at the University of Washington and North Carolina State University use the economic theory of contests to illustrate how the competitive grant-application system has made the pursuit of research funding inefficient and unsustainable — and that alternative methods, such as a partial lottery to award grants, could relieve pressure on professors and free up time for research.
December 13, 2018
Hark! UW talents — on page and disc — for the good Dawgs on your holiday shopping list
As the year comes to a close and festivities abound, some UW faculty creations can make great gifts for the thinking Dawg on your giving list.
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