Ryane Englar, an associate professor in the College of Veterinary Medicine, teaches her students that improving human interactions can also improve animal care.

Dogs' abilities to communicate with people may be present shortly after birth rather than learned, a new study suggests. Genetics may also help explain why some dogs perform better than others on tasks such as following pointing gestures.

The most recent volcanic activity on Mars, which occurred about 50,000 years ago, might have been triggered by a nearby asteroid impact that happened around the same time. 

UArizona researchers have observed, in unprecedented detail, organic molecules in planetary nebulae. Their work sheds new light on how stars form and die.

Fixing just the worst leaks in the Permian Basin oil field could cut emissions of methane  — a potent greenhouse gas — by 55 tons an hour, new research finds.

A College of Medicine – Tucson assistant professor of pediatrics answers questions about COVID-19 vaccine effectiveness and the risk of side effects in children.

The AZ HEROES study is tracking viral immunity over time and assessing vaccine effectiveness in essential workers and college students. The data will help inform decision making as we continue to confront the pandemic, says Dr. Jeff Burgess.

Western butterfly populations are declining at an estimated rate of 1.6% per year, according to a new report in Science. The western monarch population has declined 99.9% since the 1980s.

Those who have persistent sleep problems before the loss of a loved one may be at higher risk for developing what's known as complicated grief, a new study finds.

A series of smaller in-person Commencement ceremonies are planned over a weeklong period in May, President Robert C. Robbins announced this week.