A federal judge has ruled that wolves should be returned to the endangered-species list for now, derailing plans for wolf hunts in Idaho, Montana, and Wyoming. The 2,000 or so gray wolves that inhabit the three states were removed from the endangered list in March; environmentalists sued to get them back on, saying populations were not yet stable. According to the Natural Resources Defense Council Action Fund, over 100 gray wolves have been killed by hunters in the days since they were delisted, a rate of almost a wolf a day. The federal judge will eventually decide if the relisting should be permanent. Meanwhile, the U.S. Fish and Wildlife Service may appeal.