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Two cows fight during the traditional annual "Combats des Reines" ("Battle of the Queens"), a cow fight in the western Alpine canton of Valais, in Aproz, Switzerland, Sunday, May 10, 2009. The Valais is home to a unique breed of cows, the Herens also called Eringer cows. Members of this bovine family fight against themselves to establish a hierarchy within the herd. During the combat the cows simply push, forehead against forehead.