Colorado Parks and Wildlife officials began working to capture gray wolves in Canada on Friday as part of the state's wolf reintroduction plan.

Wolves are the largest members of the canid family, and these 10 species are the largest wolves on Earth today.

Colorado Parks and Wildlife plans to relocate 15 wolves from Canada next month, and people on both sides of the controversy are trying to intervene with Canadian officials.

A second group of wolves has been released in Colorado as part of a controversial, voter-driven initiative to reintroduce the predators to the state. Fifteen gray wolves from Canada were set free ...

Wildlife officials are about to capture 10-15 gray wolves from Canada and release them in Colorado, doubling their population in the state.

A 57,000-year-old mummified wolf puppy was discovered in permafrost in Canada in 2016, and researchers have studied it to learn more about life many millennia ago.

Colorado Parks and Wildlife officials began working to capture gray wolves in Canada on Friday as part of the state's wolf reintroduction plan.

Wildlife officials are about to capture 10-15 gray wolves from Canada and release them in Colorado, doubling their population in the state.

Wildlife officials are about to capture 10-15 gray wolves from Canada and release them in Colorado, doubling their population in the state.

Wildlife officials are about to capture 10-15 gray wolves from Canada and release them in Colorado, doubling their population in the state.