After 30 years of using traditional boots-on-the-ground observations, the Yellowstone Wolf Project researchers are collecting wolf calls in hopes of honing population estimates, tracking wolves without using radio collars and reducing conflict between the animals and ranchers.

As wildfires increase due to climate change, artifacts identified by BLM land surveys are at higher risk of being damaged or lost

Scientists have long wondered how baleen whales make their songs, and a new study has finally uncovered the anatomical workings behind their melodies.

From jackals to hornbills, many grassland animals form a deep bond with their partner

Months of reporting into Xcel Energy’s Valmont coal ash site reveals groundwater contamination with scant oversight from Boulder area officials.

We knew what was coming when we saw the monster of a plume. It was so much bigger than anything else we had seen. But we are scientists, so we were geeking out. The excitement for measuring such a large plume trumped everything.

Each fall, Mountain Chickadees cache as many as 80,000 seeds, using their incredible memories to retrieve them later across the harsh winter landscape. Evolutionary ecologist Scott A. Taylor and cognitive ecologist Vladimir V. Pravosudov have been working with their students to show that chickadee memory has a genetic component.

Wildfire smoke not only contains dangerous-to-breathe particles but also can react with urban air pollution to create toxic ozone

In Cleveland and other cities, the worst cases of lead exposure in drinking water are obscured from public view thanks to a decades-old federal rule.