How powerful is the smell of a dog?

Humans have about six million olfactory receptors, while dogs have 300 million. We inhale once a second and a half; they are five to ten times. They have a superior smell.

In addition, as they exhale from the sides of the muzzle, they are all the time inhaling, which gives them another perspective of smells.

Their sensitivity is such that they can recognize virtually any smell and even diseases.

Their smell is directly related to the brain. And this relationship is so powerful that it allows them to identify the mood of other dogs approaching them. And communicate. By moving the tail, they spread aromas of the annals and thus transmit and greet their state towards others.

That's why it's essential that dogs go for walks and smell the world around them.