7. And they use pigs because their sense of smell might be even better
Pigs, like dogs, have a super-human sense of smell, but they don’t need to be trained to find truffles, and find them with astonishing regularity (relatively speaking), so traditionalists often argue that they make better truffle foragers. But...
8. Using pigs to find truffles has been banned in Italy since 1985
Pigs’ hooves damage root systems, making it less likely the same host-tree will yield truffles another year. Italy banned their use and now, as Alana McGee, who trains dogs in Oregon to assist in truffle foraging, notes, dogs are more the norm. Pigs are way harder to train and more likely to eat the truffles after digging them up. While dogs will snack on truffles as well, it's easier to convince them to go for a finger of peanut butter instead.