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Why do dogs eat grass and then throw up?

Asked by tranquilsea (17775points) May 13th, 2010

Periodically our dog will go around the back yard and eat long grass. He is usually sick a couple of hours later. Is he eating the grass because he likes it and he’s just too stupid to know it will make him sick? Or, is he sick and he eats the grass to feel better?

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