http://wwf.panda.org/what_we_do/where_we_work/arctic/area/species/polarbear/polar_bear_facts/
http://big_game.at.infoseek.co.jp/bear/brown2.html
http://www.spiritus-temporis.com/brown-bear/appearance.html
http://www.thelordgeekington.com/2009_03_01_archive.html
http://www.geocities.co.jp/Bookend-Christie/7013/baranoikisi/femuto.html
http://ja.wikipedia.org/wiki/%E3%83%92%E3%82%B0%E3%83%9E
http://carnivoraforum.com/index.cgi?action=display&board=video&thread=2258&page=3
http://www.acadventures.ca/what-we-offer/grizzly-bear.html
またWWFにも登載されてるからそんな簡単にガセとは言えません
