In a statement to the press, Rick Kahn, an official with the Colorado Division of Wildlife, calls the return of a lone wolverine to its ancient range in Colorado “somewhat of an anomaly.” The last time one of the 30-pound, bear-like animals was seen in the state, women had not yet won the right to vote, The New York Times points out. A member of the weasel family, wolverines can take down animals much bigger than them, such as sheep. The male wolverine, one of only about 250 to 500 in the continental United States, has been named “M56” by wildlife researchers who hope to track its return for the first time since trappers and ranchers killed off massive numbers of the beasts, known for their sharp teeth and cunning, a century ago. The wolverine was tracked near Grand Teton National Park and traveled approximately 500 miles in April and May, even crossing Interstate 80 at one point, according to LiveScience. It is currently spending time at an altitude of more than 10,500 in Colorado, writes The Denver Post, which mentions other reports of wolverines in the state over the years, none of which were ever verified.