Perhaps it has already happened to you: you yawned heartily or speak to your dog, greet him after a long working day and he sniffs your breath very interested. Does he smell the last snack that you have consumed? Possibly, but the main motivation for this behavior is different. Dogs sniff a lot and extensively on us, often also on our breathing air. Why do you do that? For our dogs, sniffing is part of their normal social interaction on the breathing air.
The world through her nose
This is because dogs perceive the world differently than we humans. We mainly use our eyes to understand the environment, but our dogs use their outstanding sense of smell. Not only do they have many times more on olfactory cells in their nose than we do, smells are also processed differently in the dog brain than in the human brain. Even more than we humans, dogs are increasingly linking smells with memories, emotions and experiences that they have already made in their lives.