The ancients believed that truffles were the daughters of lightning. The ancient Greeks and Romans were fascinated by truffles, which they believed had aphrodisiac properties. The famous composer and gourmet Rossini praised truffles as the Mozart of mushrooms. Truffles once grew in Italian woodlands, with the best produced on the fringes of the Roero and Langhe hills in Italy's Piedmont region, which is also where Italy's best wines are produced. Truffles, especially Périgord truffles, can only be sniffed out by highly trained female pigs and dogs. Since ancient times, France has had a history of chefs using wild boars to hunt for truffles to satisfy the needs of nobles. To this day, truffle hunters in Italy and France still use trained pigs and hunting dogs to hunt for truffles. The secret is that truffles contain alpha male hormone, a compound similar to male steroid hormones. Some people believe that it is this smell that induces female animals to search, making them mistakenly think that they are tracking a partner of the opposite sex. Whether this statement is justified or not remains to be studied. Bertolino, a truffle hunter who has lived in Elma for generations, believes that only female hunting dogs are the best hunters for truffles. Because pigs especially like to eat truffles. It takes a lot of effort for the hunter to pull the pigs back, otherwise they will eat the truffles. The hunting dog's strong alertness will allow it to notify its owner as soon as it finds a truffle. In Italy, training a truffle hunting dog involves a complex process. First, train the dog to retrieve the thrown ball, then replace the ball with cheese, and then hide the cheese and let the dog find it. Finally, replace the cheese with a small piece of truffle and let the dog find it and dig it out. The night before hunting for truffles, hunters usually don't feed their dogs, so that the dogs will work harder to find truffles in exchange for rewards, such as bread and cheese, which are more popular foods for hunting dogs. Truffles and Napoleon According to legend, Napoleon ate the treasure that made him a man in one fell swoop - the truffle. At this time, you can go to La Drome in southeastern France to watch interesting dogs. Pick truffles' and enjoy a truffle feast.