A 3-year-old gray wolf died last week in northwestern Colorado after an attempt by state wildlife officers to capture it during a collaring operation.

A vehicle collision was responsible for the death of one of Colorado’s reintroduced gray wolves, according to initial necropsy results from the U.S. Fish and Wildlife Service. The wolf — 2507, a male ...

A male gray wolf died in January during a capture and collaring operation in northwest Colorado, according to Colorado Parks and Wildlife.

A gray wolf translocated from British Columbia to Colorado has died. The wolf's death is being investigated by the U.S. Fish and Wildlife Service. This is the latest in a series of wolf-related ...