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 动物 哺乳动物 牛 海福特牛
Iberian petroglyph ox automatically traced from public domain image at http://en.wikipedia.org/wiki/File:Arte_esquem%C3%A1tico-B%C3%B3vido.png petroglyph 伊比利亚 西班牙 岩石艺术牛
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 动物 哺乳动物 牛 荷斯坦奶牛
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 动物 哺乳动物 牛 根西岛牛