An elephant at the Emmen, Netherlands, zoo stands at the edge of a ditch in 2009, a day after another elephant fell into the ditch and died. Olaf Kraak/AFP/Getty Images hide caption toggle caption Olaf Kraak/AFP/Getty Images Opinion 13.7: Cosmos And Culture When Animals Mourn: Seeing That Grief Is Not Uniquely Human April 11, 2013 When animals die, their close relatives and friends may be plunged into mourning. Commentator Barbara J. King writes about animal grief in her new book, citing examples seen in animals large and small. She finds solace in the knowledge that humans are not the only animals who feel loss.