A dog’s scent organ (inside his nose) is about FOUR TIMES LARGER than a human’s! And a dog’s sense of smell is about 50-100 times more powerful than ours! Humans have 5 million olfactory receptors, but dogs have about 220 million!
Although all dogs have a powerful sense of smell, some breeds have a greater talent for sniffing out things. A few examples are Basset Hounds, Bloodhounds, and Beagles, which are considered ’scent hounds.’ If you live with a scent hound, you know how difficult it is to get his mind focused on anything but odors!