Officials believe the female wolf's migration marks a turning point for the mapping of the species' territory ...

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

The gray wolf population on a rugged archipelago in northwestern Lake Superior has surged to its highest number in nearly 50 years. After completing their annual survey this year, scientists estimate ...

Yellowstone National Park's famous wolf packs are facing an invisible threat that's bringing the number of surviving pups to ...