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If not for a series of tones broadcasting her location, no one would’ve known she had died. Like dozens of other Yellowstone National Park wolves involved in a three-decade-long study, researchers ...

Katie has a PhD in maths, specializing in the intersection of dynamical systems and number theory. She reports on topics from maths and history to society and animals. Katie has a PhD in maths, ...

A flare up of a disease that’s especially lethal to wolf pups took a toll on Wyoming and Yellowstone National Park wolf numbers in 2025, reducing biologists’ counts to a level last seen when wolves ...

A critique from a team led by Utah State University ecologist Dan MacNulty and published in Forest Ecology and Management has prompted a formal correction to a high-profile study on aspen recovery ...

Editor’s note: This story first appeared in Mountain Journal. YELLOWSTONE NATIONAL PARK — Around Crystal Creek, where the road bridges the Lamar River at the fringe of Yellowstone National Park’s ...

Biology teachers around the world commonly introduce their students to the concept of 'trophic cascades' with an example from Yellowstone National Park in the United States. It starts with the removal ...

Leslie Patten hiked into a remote reach of northwest Wyoming’s Sunlight Basin in December to post a trail camera where she’d earlier seen wolf tracks. At the time, a winter closure was fast ...

Over the last three decades, Yellowstone National Park has undergone an ecological cascade. As elk numbers fell, aspen and willow trees thrived. This, in turn, allowed beaver numbers to increase, ...