Why does my dog keep yawning?

You are correct to draw a distinction between an animal yawning when tired and an animal yawning not through tiredness. Yawning in mammals increases the flow of oxygen to the brain and increases the heart-rate. All mammals can be seen yawning under nearly any circumstance, not just when they are tired or bored. read more

Yawning in mammals increases the flow of oxygen to the brain and increases the heart-rate. All mammals can be seen yawning under nearly any circumstance, not just when they are tired or bored. In fact, because of the physiological impact of a yawn, some researchers believe that a yawn is used as a way to prepare the body for impending action. read more

Yawning in dogs looks just like it does in humans - wide open jaw accompanied by a big, deep breath. While with people we usually associate yawning with fatigue, when dogs yawn, it is a form of dog communication. read more

My dog, Cassie, used to yawn a lot, when she saw me get ready to leave the house, and not knowing whether she would be taken along. She would follow me everywhere and stretch and yawn. read more