Yellowstone is home to some of North America's most iconic wildlife, including the Big Five. Here's what you need to know ...

Yellowstone National Park has recently seen the effects of wolves being brought back into its borders. The animals have slowly shaped the landscape around them, being the key to the entire ecosystem’s ...

Thirty years after their reintroduction in Yellowstone, wolves have proven their ecological worth, at least in the context of ...

Staff in Yellowstone National Park observed the first grizzly bear tracks of 2025 earlier this month — signaling the very ...

Three decades after their reintroduction, Yellowstone’s wolves have transformed the park. What’s next for the ecosystem and ...

In Yellowstone, tourists are responsible for their own safety, and regulations stipulate that visitors must stay at least 25 yards from bison and elk, and 100 yards from bears and wolves.

Notoriously elusive, cougars vary their range in response to their prey, mostly elk and deer. In winter they favor the shallow snow in the northern reaches of Yellowstone. This cougar was caught ...

But the huge fire of 1988 ultimately produced few large trees. The elimination of Yellowstone's wolves allowed the elk to browse aspens unchecked. Finally, Ripple and Larson decided to look within ...

Mark Hebblewhite is a professor of ungulate habitat ecology at the University of Montana. He and the University’s W.A. Franke ...

Hallac ticked through a list of interrelated concerns, nagging issues in Yellowstone familiar to us both: bison management, elk migration, grizzly bear conservation, private land development in ...

Snow crunched underfoot as Mark Hebblewhite scanned the ridgelines of Canada’s Banff National Park. It was 1995, and the ...