Conservation groups sued the Fish and Wildlife Service on Monday over the agency’s rejection of petitions to list two significant gray wolf populations as threatened or endangered.
The two lawsuits were filed against the federal agency in Montana.
The similar suits challenge the FWS determination that ESA protections were not warranted for the gray wolf populations in the western United States or the northern Rocky Mountains.
The Western Environmental Law Center filed its lawsuit on behalf of 10 organizations, including the Western Watersheds Project, Wilderness Watch and Protect the Wolves. A separate suit was filed by the Center for Biological Diversity, Humane Society of the United States, Humane Society Legislative Fund and Sierra Club.