voice
Rockstar
video
description
Canines primarily investigate the world through scent-perception. Human noses have six million scent receptor sites, while dog noses have about three hundred million. Dogs have more genes for coding olfactory cells, more olfactory cells, and the receptors in the nose connect directly to olfactory bulbs. This combination of more and differing types, and quicker connections, affords dogs an estimated million times more sensitivity to scent than humans.