The push to revive extinct animals is accelerating, but scientists disagree about whether gene-edited species count as true "de-extinction." ...

For the first time since their species was reintroduced in Colorado, a gray wolf has been tracked into Pueblo County.

Nature gave the world the dire wolf 2.6 million years ago, and then, through the hard hand of extinction, took it away—some ...

Mexican gray wolves continue to be one of the most controversial conservation issues in Arizona and across the region.

Another wolf in the King Mountain pack has died, Colorado Parks and Wildlife announced Friday.

Such killings are not new but are typically carried out by wildlife officials.

State and federal wildlife agencies reported 319 Mexican gray wolves in the wild, up from 286 a year ago.

Utah, Montana and the administration may also appeal. Three sportsmen’s groups on Wednesday filed a lickety-split challenge to a federal judge’s order that the Fish and Wildlife Service reconsider ...

The effort to lethally remove a gray wolf responsible for several depredation events in Rio Blanco County last summer has ...