Every October, these feisty Herens cows fight each other in the otherwise sleepy Swiss village of Aproz, in an event known as the Battle of the Queens (Combats de Reines).
The cows start their fight (Thorsten Negro/Robert Harding)
Cow bells, winner prizes (Thorsten Negro/Robert Harding)
Locking horns to see which cow will admit defeat (Thorsten Negro/Robert Harding)
See more images from the Fight of the Queens here