From National Geographic:
Gray wolves in most of the United States are once again protected under the Endangered Species Act, according to a new legal decision.
A U.S. District Court judge in Oakland, California, ruled on February 10 that the U.S. Fish and Wildlife Service acted improperly in delisting wolves. That decision, which went into effect in October 2020 toward the end of the Trump Administration, removed federal protections for the animals, arguing they had recovered within substantial parts of their range. This delisting decision has been upheld—and defended in court—by the Biden Administration.