Corrugated fiberboard is sometimes called corrugated cardboard, although cardboard might be any heavy paper-pulp based board.
Gray Wolf. The gray or timber wolf's story is one of the most compelling tales of American wildlife. Once, the wolf was widespread across most of North America, but it was hunted ruthlessly and extirpated over most of its range. Today, the wolf is making a successful comeback in some of its former habitat due to strong conservation efforts.
Canada at a glance. Canada supports the second largest gray wolf population in the world, after Russia. Wolf habitat is diverse in this large country where, historically, wolves ranged in most areas. Currently, wolves in Canada occupy approximately 90 percent of their historic range (range lines not depicted). The 10 percentage without wolves is primarily near the southern border, except near Lake Superior where wolves still live. See individual provinces.