a positive statement or declaration, often without support or reason: a mere assertion; an unwarranted assertion. 2. an act of asserting. Origin of assertion.
The range of the grizzly bear once covered most of the western United States, Canada, and Mexico. Relentless human expansion and hunting has diminished the bears habitat to Alaska, western Canada, and a handful of northwest states.
The grizzly bear (Ursus arctos ssp.) is any North American subspecies of brown bear, including the mainland grizzly (Ursus arctos horribilis), Kodiak bear (U. a. middendorffi), peninsular grizzly (U. a. gyas), and the recently extinct California grizzly (U. a. californicus â ) and Mexican grizzly bear (U. a.nelsoni â ).n other words, the grizzly and the brown bear are one species on two continents. Currently, Rausch and others classify three subspecies of the new North American brown bear: U. a. horribilis, middendorffi, and gyas.