A new study shows that interactions between wolves and cougars in Yellowstone National Park are driven by wolves stealing prey killed by cougars and that shifts in cougar diets to smaller prey help them avoid wolf encounters.

When Dr. Leluo Guan peers inside a cow’s stomach, she sees more than microbes—she sees an opportunity to cut methane emissions from cattle and improve profits for Canadian beef and dairy farmers.

Monarch butterflies have always been remarkably resilient.

It started in the summer of 2013. Sea stars were dying in huge numbers in Washington State’s Olympic National Park: They became covered in white lesions.

Flowers emit scented chemicals to attract pollinators, but this perfume — and how pollinators interact with the plant — can go through profound changes as a crop becomes domesticated.

Whales, dolphins and other marine mammals are highly social, but those social ties can also help diseases spread through populations of rare or threatened species.

As the state works to increase local food security, researchers at the University of Hawaiʻi at Mānoa are developing methods to naturally produce more nutritious, faster-growing fish.

The U.S. boasts more than 4 million miles of rivers, peppered with laws and regulations to protect access to drinking water and essential habitat for fish and wildlife. 

Higher temperatures may make monarch butterflies more vulnerable to parasites, according to new research from the University of Georgia.

In the aftermath of historically severe wildfires in 2020, a study of Cascade Range watersheds found that stream vertebrates are doing surprising well, highlighted by flourishing fish populations.