A federal judge returned Yellowstone-area grizzly bears to Endangered Species Act protection and permanently blocked grizzly hunting seasons in Wyoming and Idaho on Monday.

"Although this order may have impacts throughout grizzly country and beyond, this case is not about the ethics of hunting and it is not about solving human- or livestock-grizzly conflicts as a practical or philosophical matter," U.S. District Judge Dana Christensen wrote at the start of his 48-page ruling. "This court's review, constrained by the Constitution and the laws enacted by Congress, is limited to answering a yes-or-no question: Did the United States Fish and Wildlife Service exceed its legal authority when it delisted the Greater Yellowstone grizzly bear?"