Wolverine goes solo in Colorado as feds mull endangered status

While state biologists wait for federal authorities to declare a second species — wolverines — endangered by climate change, one lone male wolverine is making the case that Colorado mountains are a critical refuge.

But the wolverine, M56, arrived on his own, and it likely would take an act of the state legislature to import any others.

Now entering a fourth winter after trekking from Wyoming across the Red Desert into Rocky Mountain National Park, M56 has not only survived but thrived. Food apparently hasn't been a problem — marmots in summer, meaty elk bones during winter.