The gray wolf only roams a fraction of its historic range. While it used to inhabit huge parts of the U.S., it’s now confined to just a few states. But last winter, the US Fish and Wildlife Service proposed taking it off the endangered species list throughout the entire lower 48 states, because in that small area, wolves are thriving. It’s the first step in what could be a radical reinterpretation of the Endangered Species Act, with ramifications far beyond wolf country.