Enviros sue to secure ESA critical habitat for wolverines

By Michael Doyle | 01/14/2026 04:04 PM EST

The Fish and Wildlife Service listed the animals as threatened in November 2023.

A wolverine climbes a tree branch in the Tahoe National Forest near Truckee, California.

A photo from a remote camera shows a wolverine in the Tahoe National Forest near Truckee, California. Chris Stermer/California Department of Fish and Wildlife/AP

A dozen environmental groups sued the Fish and Wildlife Service on Wednesday for allegedly missing an Endangered Species Act deadline to designate critical habitat for the North American wolverine.

With only about 300 wolverines remaining in the Lower 48 states, the environmentalists say time is of the essence.

“Wolverines need critical habitat protections now,” Lizzy Pennock, carnivore co-existence attorney at WildEarth Guardians, said in a statement, adding that “the Fish and Wildlife Service cannot keep shirking its legal duty to provide meaningful protections for this species that is already down to a few hundred individuals.”

Advertisement

The FWS listed the wolverine as threatened in November 2023, citing the dangers that a warming planet pose to a snow-dependent animal like the wolverine.

GET FULL ACCESS