A Bison bison, more commonly known as an American Bison. Greyscale, stylized. バイソン バイソンバイソン アメリカバイソン バイソンバイソン
This image was donated by Pearson Scott Foresman, an educational publisher, to Wikimedia Commons, and is thereby in the Public Domain. --- See http://commons.wikimedia.org/wiki/Category:Pearson_Scott_Foresman_publisher 動物 鳥 生物学 ペリカン