There have been several pets that I have spoken for who had behavioral changes after the death of a companion. Some became withdrawn and others had a decrease in appetite. When animals experience the loss of a pet companion, I suggest that the humans talk about the loss, acknowledge it and provide reassurance that in time everything will be ok. On some level, animals understand our words.
Barb Borkowski is an animal communicator. She speaks for pets and enhances their relationships with people.