Sankebetsu brown bear incident Kodiak bear Grizzly bear [ edit ] References ^ McLellan, B.N., Servheen, C. & Huber, D. (2008). Ursus arctos . In: IUCN 2008. IUCN Red List of Threatened Species. Downloaded on 27 January 2009. ^ "Polar bear, ( Ursus maritimus )" (PDF). U.S. Fish and Wildlife service