A recent court ruling on wolves in the northern Rockies should help guide another judge who will decide on federal protection for a mouse species in Colorado and Wyoming, environmental groups argue. A cattlemen's group says the judge should decide for himself about the Preble's meadow jumping mouse, a critter about the size of other mice but with a 6-inch tail and the ability to leap up to 3 feet to escape predators...There is no surprise in environmentalists linking the mouse and wolf cases, said Jim Magagna, executive vice president of the Wyoming Stock Growers Association.