Yes, pets can indeed suffer from depression. Similar to humans, pets can experience feelings of sadness, hopelessness, and loss of interest in activities they once enjoyed. Changes in their environment, loss of a companion (human or animal), lack of mental or physical stimulation, or health issues can all contribute to depression in pets. It's important for pet owners to be aware of their pet's behavior and seek guidance from a veterinarian if they suspect their pet is suffering from depression.