CLIFTON, AZ (AZFamily) — A federal agency mistakenly killed an endangered and possibly pregnant Mexican gray wolf in Arizona, the U.S. Fish and Wildlife Service said in a memo earlier this month.

CLIFTON, Ariz. (KPHO/Gray News) - A federal agency mistakenly killed an endangered and possibly pregnant Mexican gray wolf in Arizona. According to the U.S. Fish and Wildlife Service, an unknown ...