State officials in the Northern Rockies on Monday lined up against a federal proposal to give new protections to the carnivorous wolverine, as climate change threatens to melt the species' snowy mountain strongholds.

A pending U.S. Fish and Wildlife Service proposal would declare the rare, elusive animal a threatened species across the Lower 48 states.

That could end trapping for the ferocious member of the weasel family sometimes called the "mountain devil." And it would pave the way for Colorado to reintroduce wolverines in portions of the southern Rocky Mountains as part of a strategy to bolster their numbers ahead of future declines.