Until now, there is still talk whether or not a dog has emotions. But it seems that a dog having them is more accepted now as it was before. Dogs show that they are happy to see their owner come home by showing excitement, wagging its tail, and pouncing on them as they step through the doorway. If scolded, they seem to manifest guilt by withdrawal and showing maybe signs of shame. So if a dog can feel happy, excited and guilt, then most surely they should feel depression.
What are the causes and signs of dog depression?