In 1995, when wolves were reintroduced to Yellowstone National Park, a widespread trophic cascade happened.
Thank you for the video. Very nice presentation, and such beautiful animals. I do remember hearing of this reintry of wolfs to Yellowstone. It is amazing what just 20 years can do to rehabilitate what man can undo.
Very pretty! In Yellowstone wolves and bears seem to be doing almost as much good as humans, dogs, and cats do for the land in my part of the world.