Add Yahoo as a preferred source to see more of our stories on Google. "My dog, specifically at nighttime, will randomly growl... I was just petting her gently, and she growled. Other nights, we will ...

"After my dog’s TPLO knee surgery, he has a few times now growled at my wife. It is only when we are sitting in the living room (he is in a confined area still) and she comes home from work through ...