Why Does My Dog Leave His Tongue Out. Some dogs stick their tongue out when they are very relaxed or sleeping. Why does my dog have his tongue out?
As a dog owner, you know it's not unusual to see a dog sticking their tongue out during many occasions throughout the day. When dogs are sticking out their tongues, this generally refers to the muscular organ, called the tongue, being frequently found sticking outside the mouth, beyond the teeth and gums. By sticking some or all of the tongue out (panting or not), contact with the air aids in evaporation of saliva on it, which cools down the tongue and releases heat from the.