It's not unusual for some dogs to mourn the loss of a favorite person or animal housemate.
Pet experts say, grief is one of the basic emotions dogs experience, just like people.
Dogs also feel fear, happiness, sadness, anger, as well as possessiveness.
Pet behaviorists say, dogs who mourn may show similar signs to when they're separated for long periods of time from the individual they're bonded to.
Of those signs, depression is the most common, in which dogs usually sleep more than normal, move slower, eat less and don't play as much.
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