What is a dog's most powerful sensory organ?
A dog’s sense of smell is its primary way of making sense of the world. The lining inside a dog’s snout is covered with scent receptors. The amount of receptors varies according to breed. A dachshund has around 125 million, while a beagle has almost twice that amount. People, by comparison, have a mere five to six million. So it’s no wonder that a dog’s sense of smell is much sharper than humans.