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Ursus (Genus) - black, brown, polar, sun, and sloth bears ..[Euarctos] (Subgenus) ..[Thalarctos] (Subgenus) - polar bear ..Ursus americanus (Species) - American black bear ..Ursus arctos (Species) - brown bear ..†Ursus deningeri (Species) ..†Ursus etruscus (Species) ..[Ursus horribilis] (Species) ..[Ursus lotor] (Species) ..[Ursus luscus] (Species) ..Ursus maritimus (Species) - polar bear ..[Ursus meles] (Species) ..‡Ursus spelaeus (Species) ..Ursus thibetanus (Species) - Asian black bear ..[Ursus] (Subgenus) ....[†Ursus speleus] (Species)

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Last updated: 28 Aug 2026