The Lagotto Romagnolo, known as the Italian Water Dog, is known for its digging. Here a couple young Lagotti are playing beneath an English Oak tree inoculated with truffle.
At 0:12, you can see the light colored girl catch a scent of truffle and respond with keen interest. Lagotto love to dig and these two demonstrate that this is instinctual from a young age.
At 1:24, you can see she has found another spot as she hunts around locating the source - and she drives her nose right into the ground before going at it with her paws. Be sure to give your Lagotto an outlet for his/her digging instincts!