So what does grief look like? It can be rocking, as I said, in distress. It can also be social withdrawal, when an animal just takes himself or herself away from friends and stays by themselves, or a failure to eat or sleep properly, sometimes a depressed posture or vocalization. It can be very helpful for those of us studying this to be able to compare the behavior of a survivor before death and after death, because that increases the rigor of our interpretation.
On July 24th, 2018, Tahlequah (whale mom) gave birth to a daughter, and scientists were so excited by this development. But unfortunately, the same day -- in fact, shortly after birth -- the calf died.
And I do believe that "grief" is the right word to use. I believe that grief is the right word to use for numerous animals who mourn the dead. They may be friends or mates or relatives. Because these visible cues, these behavioral cues, tell us something about an animal's emotional state. Now, for the last seven years, I've been working to document examples of animal grief -- in birds, in mammals, in domesticated animals and in wild animals -- and I believe in the reality of animal grief.