Sitting in an old-growth spruce fir forest, Doug Smith says he can see first-hand the impact of reintroducing wolves on the ...

Five of 15 wolves captured in British Columbia and released in Colorado in January have died in less than six months.

Some exceptional photographs have been published of the wolf that nature-lovers have called Emma taking a refreshing dip in a ...

One of Colorado’s reintroduced wolves died on Thursday, May 15, in the state’s northwest region. Colorado Parks and Wildlife officials confirmed on Friday that they received a mortality alert on the ...

A wolf at Zollman Zoo known simply as "old girl" died there Thursday morning. Most wolves typically live seven to eight years in the wild. At 16 years of age, the female gray wolf, who came to Zollman ...

After being delayed a day, Colorado Parks and Wildlife published the April wolf activity map that shows extensive travel from one wolf. A strip of purple that roughly follows U.S. Route 50 in southern ...

Researchers found that two wolf populations near Gustavus are increasingly relying on marine prey for food. In some cases, the shift is resulting in potentially toxic mercury exposure.

"That's huge if that trend holds," says Trent Roussin, a Washington biologist. A female wolf padded down an old logging road in northeastern Washington last summer. The yearling would have barely ...