Confections or mushrooms?
These days we tend to think of truffles as elegant confections.
They are also parts of subterranean mushrooms, prized for their distinctive flavor. These truffles are quite pricy and therefore considered a good cash crop in countries such as France. For centuries, the French used pigs to sniff out truffles. Now, according to Wikipedia,dogs are more commonly used because they are less likely to devour their lucrative discoveries.
Photo by Robert Vayssié courtesy of Wikipedia