A lawsuit was filed Thursday in a bid to reverse the Trump administration's decision to remove Endangered Species Act protections for gray wolves in the 48 contiguous states.
The groups that brought the action -- Defenders of Wildlife, Center for Biological Diversity, Sierra Club, National Parks Conservation Association, Oregon Wild, and the Humane Society of the United States -- maintain the U.S. Fish and Wildlife Service made its delisting decision "despite the science that concludes wolves are still functionally extinct in the vast majority of their former range across the continental United States."
https://www.nationalparkstraveler.org/2021/01/groups-bring-lawsuit-restore-esa-protections-wolves