In Europe, dogs have been used for centuries for their keen sense of smell to locate prized black and white truffles which can fetch hundreds or thousands of dollars a pound depending on their variety. In Oregon and the Pacific Northwest, using dogs to sniff out truffles is relatively new and growing in popularity. There are even training classes and an annual truffle dog contest held at the Oregon Truffle festival. 

Oregon has four varieties of gourmet edible truffles, but there are hundreds of species of these mysterious fungi growing on the roots of conifer and oak trees across the state. So what if you could use a dog’s nose to home in on the odor signatures of all sorts of truffles, not just the commercially valuable ones, for a better scientific understanding of truffle biodiversity? That’s the goal of Heather Dawson, a doctoral student in the biology department at University of Oregon. She trained her golden retriever, Rye, to detect dozens of different kinds of truffles in the Willamette Valley alone. She joins us to share her work and the attention it’s attracting among other scientists and forest foragers.