CLIFTON, Ariz. ( KPHO /Gray News) - A federal agency mistakenly killed an endangered and possibly pregnant Mexican gray wolf ...

The U.S. Fish and Wildlife Service says it killed a Mexican Gray Wolf in Arizona by mistake last week. Wildlife advocates are ...

A federal agency “mistakenly” killed an endangered and possibly pregnant Mexican gray wolf in Arizona, officials said.

Dire wolves share ancestry with modern-day dogs, which scientists have already studied and gathered data on extensively.

It was not an easy task to hunt down Kriegsmarine U-boats. The grey wolves of the Atlantic knew precisely when to attack and ...

The de-extinction of dire wolves has proven that science can. As they mull the return of dodos and mammoths next, the question remains: should they?

Neighboring Lassen County also has reported increased gray wolf activity ... lawmakers are considering legislation to extend the wolf hunting season, while wildlife managers in Idaho allow ...

A citizen-led initiative to halt Colorado's ongoing wolf reintroduction program was tossed by election officials.

Scientists say the Trump administration’s embrace of de-extinction won’t help endangered species like the Great Lakes gray ...

Over the last month, two of Colorado’s latest gray wolf transplants were killed after crossing the border into Wyoming.

The dramatic moment, recorded by photographer Julie Argyle, illustrates the problems apex predators endure, even when they combine forces.

Earlier this month, a biotechnology company announced it had genetically engineered three gray wolf pups to have white hair, more muscular jaws and a larger build — characteristics of the dire wolf, a ...