Why does a dog hang his tongue out?

Answer

Dogs pant and let their tongues hang out of their mouth to regulate their body temperature, because they have fewer sweat glands than humans. However, several other explanations exist as to why dogs hang out their tongues.

Some dogs with functional tongues have a mouth cavity that is too small. This may be caused by genetics, an abnormal jaw or missing teeth. Dogs who are chronically unable to pull the tongue into the mouth have hanging tongue syndrome. The tongue dries out due to constant air exposure and can become cracked and painful. Pet owners can alleviate the discomfort by applying olive oil to the tongue as a lubricant, encouraging frequent drinking and allowing the dog to lick ice cubes.

Q&A Related to "Why does a dog hang his tongue out?"
that means that ure dog ate to much candy of some sort and he died!
http://wiki.answers.com/Q/Why_dog_just_die_with_hi...
Food. Years ago a neighbor had a female german shepherd that chased me every time I passed their yard. She would run up behind me and try to nip at my pants legs and calves. So
http://www.quora.com/Animal-Behavior-Ethology/How-...
A dog's tongue hangs out when they pant. Panting helps dogs to regulate their body
http://www.chacha.com/question/why-does-a-dog's-to...
That particular breed of dog tend to have a lot of dental problems, usually resulting in the loss of their teeth. Therefore, they have nothing to hold their tongues in. You will notice
http://answers.yahoo.com/question/index?qid=200706...
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