Traditionally, the French will use "seeking loose pigs" and designate boars. Because the smell of black truffles is similar to that of sows in estrus, boars can easily find the target. However, because the "loose pig" is unreliable and will swallow truffles, the French have also switched to "loose dog" in recent years.

To say that the animals in the zodiac are related to truffles, it can only be the above two. However, the first reaction of animals associated with truffles is pigs.