The apex predators, restored to the park in 1995, appear to be keeping the local population of plant-eating elk in check, ...

Aspen forest is reclaiming the skyline of Yellowstone National Park after decades of controversy over efforts to return ...

Gray wolves were reintroduced in Yellowstone National Park in 1995 to help control the numbers of elk that were eating young ...

After a drought of new aspen growth in Yellowstone's northern range, wolves appear to have flipped the script for these ...

For the first time in 80 years, aspen trees are thriving in Yellowstone National Park in the US, due mostly to the ...

The restoration of gray wolves in Yellowstone National Park has helped revive an aspen tree population unique to the region, ...

Yellowstone National Park is celebrating an ecological milestone along with a key anniversary this summer, Oregon State ...

The National Park Service is clearing up any misconceptions on whether wildlife is migrating away from Yellowstone National ...

Wolves in Yellowstone National Park will sometimes test their predation skills on lone adult bison. But there can be painful ...

Yellowstone is home to hundreds of species of birds, fish and mammals, according to the NPS. It is the only national park in ...

The incident occurred at Grand Prismatic Spring near Old Faithful as tourists were enjoying a close-up view of the famous and popular hot spring.

Among them were Wolf #7 and her daughter Wolf #9, whose stories and legacies unfold in Wolf Matriarchs of Yellowstone. Their bloodlines can be traced to most of the wolves in the park to this day.