Yellowstone is home to nearly 5,000 bison, which must contend with wolves in the winter, and wolves and grizzly bears during ...

Two rare black wolves, likely siblings, were spotted on camera crossing a stream in a Polish forest, a conservation ...

A fifth wolf was found to have been shot and ... who wrote to the commission this summer saying 13 Yellowstone wolves had been killed the past winter, including eight in Montana and six of them ...

An ecotour company that specializes in wolf-sighting expeditions in Yellowstone National Park has shared extremely rare footage showing a cougar stalking mountain goats on a snowy slope.

One of the oldest and most beloved wolves in Yellowstone National Park died after a fight with a rival pack in late December, park officials said. Wolf and wildlife advocates are mourning the loss ...

For the Yellowstone issue of National Geographic, Donovan spent 2015 living in the national park and chronicling the life of one of its iconic species, the gray wolf. Now based in Montana ...

Colorado voters narrowly decided to reintroduce gray wolves to the western part of the state, sparking tensions with ranchers ...

Males usually grow their antlers from mid-spring to late summer and shed them ... also known as the Rocky Mountain wolf, is an endangered species, and the Greater Yellowstone Ecosystem is one ...

Laws and regulations adopted by Montana and Idaho lawmakers to reduce wolf populations were "at odds with modern professional ...

Those who want to learn about Yellowstone wildlife in a more controlled environment should take a break from the park and head to the Grizzly & Wolf Discovery Center. This nonprofit (that's also ...

Over the ensuing decades, the wolf population grew and stabilized. Currently, there are approximately 100 wolves within the park and 500 wolves in the greater Yellowstone ecosystem. Gray wolves ...

It’s no secret that Yellowstone National Park can be jampacked in the summer, when up to 1 million ... social dynamics of Yellowstone’s wolf packs like a mountain melodrama.