One of the most expensive and rare foods in the world are truffles. Not the chocolate ones, but the edible fungus that lives underground around the roots of certain trees. Found throughout the world, especially in Italy, truffle hunters use dogs to sniff out this delicacy. The Lagotto Romagnolo, one of Italy’s oldest known dog breeds,
is a small to medium-sized water retriever with a great disposition and the only dog in the world recognized as a specialized truffle searcher.