Assertion: mainland grizzly | /r/HasProperty | ursus arctos horribilis
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text: Multiple morphological forms sometimes recognized as subspecies exist, including the mainland grizzly (Ursus arctos horribilis), Kodiak bear (U. a. middendorffi), peninsular grizzly (U. a. gyas), and the extinct California (U. a. californicus†), Mexican (U. a. nelsoni†), and Ungava-Labrador (U. a. ungavaesis†) grizzlies.