The U.S. Fish and Wildlife Service’s former longtime grizzly bear recovery manager has written a new report that recommends against grizzly bear delisting and details how he believes the federal recovery plan he wrote in 1993 should be updated to treat grizzlies in the Northern Rockies as a single population and to include new research

Although the lower 48 states now have more grizzly bears than it did in the 1970s, biologists and environmental groups argue that more is needed for full species recovery, including a new recovery plan.