Why do dogs smell each other’s butts? It turns out the reasons are more complex that you would think. This dog behavior is one of the animal kingdom’s more interesting forms of chemical communication. Not only that, but they have a secondary olfactory system called the Vomeronasal or Jacobson’s Organ that has its own fascinating structure and abilities. It links directly to their brain!
This video not only explains the array of information a dog collects about another dog, but how they do it.
Want to know more about a dog’s nose in detail? Then you’ll want to hear and see what Alexandra Horowitz has to say about how dogs “see with their noses” and how the dog’s nasal architecture reveals a whole world beyond what humans can see.