Dose of Dog - Resource Guarding

Why does your otherwise docile dog growl when you come near their bowl (or another object)?  Heather tackles this topic as she discusses "resource guarding" -Why do dogs feel a need to guard something they deem valuable (such as a bowl, toy or even their human) - Finding help or information online can be tricky on this topic - She brings up cues that this is being displayed by your dog - This is a part of a dog's natural behavior, but it can be dangerous.   - So what can be done?