Two Herens cows lock horns during the qualification round of the annual Finale nationale de la race d'Herens' (Herens national cow fighting finals) in Aproz, Switzerland, 05 May 2019. Each year when taken to the alpine pastures, the cows test their strength and fight for the herd's leadership. The competition continues until a new queen has forced all the other cows to retreat. (Photo by Valentin Flauraud/EPA/EFE)
