© AP Photo/Martin Mejia.

A former circus lion named “King” lays sedated as a veterinarian performs dental surgery, inside a temporary refuge for the lion on the outskirts of Lima, Peru, Friday, Feb. 20, 2015. Vets from the Animal Defenders International (ADI) are operating on lions and monkeys rescued from traveling circuses in Peru and Bolivia. According to the vets, King was removed from a circus in Nov. 2014 and is unable to chew his food properly because most of his teeth had been pulled out, or partially pulled out by his circus owners. It is illegal to use wild animals in circuses in Peru.