After an 80-year absence, gray wolves have returned to Color

At one time, perhaps as many as 2 million gray wolves roamed the North American continent. But now those numbers are down to a few thousand.

Related Keywords

Michigan , United States , Wyoming , Rocky Mountain , Colorado , Wisconsin , Idaho , Yellowstone National Park , Oregon , Yellowstone , Montana , Minnesota , Washington , American , Joanna Lambert , University Of Colorado Boulder , American Association For The Advancement Of Science , American Canid Project , Colorado Boulder , Colorado Parks , Will Colorado , North American , Endangered Species Act , Northern Rockies , American Association , Gray Wolves , Endangered Species List , Olorado Parks And Wildlife , Gray Wolf Populations , Eintroduction Of Wolves , Apex Predators , Prey Species ,