A herd of bison in Yellowstone National Park decided that the best defense is a good offense, so it worked together to chase ...

Wyoming wildlife managers plan to reduce how many wolves can be hunted by 50% following a canine distemper outbreak that has cut the state’s wolf numbers to the lowest level in two decades.

A flare up of a disease that’s especially lethal to wolf pups took a toll on Wyoming and Yellowstone National Park wolf ...

For wolves in Yellowstone, it’s all about survival. Pack members sometimes put the smackdown on each other, just to maintain ...

A prominent wolf that lived among Yellowstone's most famous wolf pack is believed to have been illegally shot and killed just outside the park last month, according to wildlife experts. NOTE: The ...

This valley in northeastern Yellowstone is home to a number of notable wolf packs. Embark on a tour or head out on your own ...

Yellowstone National Park is the country’s first national park, established in 1872. At the time, wild gray wolves roamed the land, and fossil records show the species’ presence in the region dating ...

Canis lupus body size is dynamic and complex, and biologists aren’t in total agreement about why wolves are much larger in ...