May 20 is the one-year anniversary of Colorado’s Restoration of Wolverines Act. North American wolverines — Gulo gulo luscus — were added to the U.S. Fish and Wildlife’s threatened species list in ...

As I skied on a frozen river, a hairy creature trotted toward me. When the wolverine spotted me, it popped up in the air like an antelope, landed like a cat and bounced away into the high country of ...