On Ignoring Jumping

"Scientific measures of the sensitivity of the dog nose are limited, more by the capacity of measuring devices and dogs interest in submitting to them, than by their noses. Both pet dogs and tracking dogs have been put through their paces in a variety of threshold detection tasks that ask how diluted an odorant can be before a dog stops noticing it's there. Pick out a canister with the smell of banana, Isoamyl acetate, from a series of non banana smelling canisters. Dogs keep finding the banana until it is diluted to one to two parts per trillion, a couple drops of Isoamyl acetate in one trillion drops of water." Alexandra Horowitz. Being a Dog.