Gray wolf pups are born nearly helpless: blind, deaf and lacking the acute sense of smell of their elders. They usually ...

These territorial canines, who live and hunt in packs, were reintroduced to the national park 30 years ago. It’s good news for the park’s quaking aspen.

Gray wolf pups are born helpless—blind, deaf, and without the strong sense of smell that helps adult wolves survive. Normally, these pups stay safe inside their den for at least the first three weeks ...

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

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

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

The reintroduction of large carnivores has initiated a recovery process that had been shut down for decades,” says Painter in a statement.

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

Twenty gray wolves from Yellowstone have been killed by hunters, reducing the park's population to 94. National Park Service Superintendent has asked the Montana governor to suspend wolf hunting for ...

BILLINGS, Mont. (AP) — Twenty of Yellowstone National Park’s renowned gray wolves roamed from the park and were shot by hunters in recent months — the most killed by hunting in a single ...

MORE: What to know about the grey wolf, whose fate in Colorado could be decided by voters Nine wolves interact on top of crusty snow in Yellowstone National Park on Nov. 21, 2019.

In 1995, the first 14 grey wolves were brought from Canada’s Jasper National Park and reintroduced to Yellowstone, with 17 more the following year. They’ve since thrived.