In the Spanish village of Medinaceli, a medieval tradition called Toro Jubilo takes place every November. This festival involves tying a bull to a post, applying a black sticky substance and setting its horns on fire. Terrified, the animal slams into the walls, desperately trying to escape the flames that can burn for hours, damaging its horns, eyes and body. Images captured by AnimaNaturalis show the bull struggling to free itself. Tragic scenes reveal the animal alone, covered in mud, confused and unable to shake off the fire. Last year, a bull collapsed from exhaustion and died of a cerebral hemorrhage during the event. Peta, an animal protection organization, is calling for an end to this violent festival, advocating a cruelty-free celebration of animals.