Grey Wolf (Canus Lupus) - ENDANGERED Once almost completely disappeared from the lower 48 states, the grey wolf is making a comeback in the Great Lakes, northern Rockies, and the Southwestern United States. There are an estimated 7,000 - 11,200 in Alaska, 3,700 in the Great Lakes region, and 1,675 in the Southwest. The ancestor of our domestic dog, the grey wolf ranges in color from grizzled grey or black to white. Wolves play a key role in sustaining healthy ecosystems. T