Why do they use pigs for finding truffles?

Pigs are used for finding truffles because they have a keen sense of smell and are naturally attracted to the aroma of truffles, which is similar to a pheromone found in their reproductive organs. This instinct makes them effective at locating truffles buried underground. However, pigs can be difficult to control, leading many truffle hunters to prefer trained dogs, which are also effective and easier to manage.