“Kodiak Bears”. North American Bear Center. 2014年8月26日閲覧。
“Big Brown Bears”. North American Bear Center. 2014年8月26日閲覧。
fws.gov
fws.gov
“Polar bear, (Ursus maritimus)” (PDF). U.S. Fish and Wildlife service. 11 July 2008時点のオリジナルよりアーカイブ。22 March 2008閲覧。 “Appearance. The polar bear is the largest member of the bear family, with the exception of the Alaska’s Kodiak brown bears, which equal polar bears in size.” (Overview page)
ecos.fws.gov
“Polar bear, (Ursus maritimus)” (PDF). U.S. Fish and Wildlife service. 11 July 2008時点のオリジナルよりアーカイブ。22 March 2008閲覧。 “Appearance. The polar bear is the largest member of the bear family, with the exception of the Alaska’s Kodiak brown bears, which equal polar bears in size.” (Overview page)
web.archive.org
“Polar bear, (Ursus maritimus)” (PDF). U.S. Fish and Wildlife service. 11 July 2008時点のオリジナルよりアーカイブ。22 March 2008閲覧。 “Appearance. The polar bear is the largest member of the bear family, with the exception of the Alaska’s Kodiak brown bears, which equal polar bears in size.” (Overview page)
“Kodiak Bear Fact Sheet”. Alaska Department of Fish and Game, Division of Wildlife Conservation (2008年). 2008年10月27日閲覧。