The Elephants knew he had died.

I just read this story about how Elephants mourn and mark their grief, by the late Wayne Dyer . Whoever said Elephants never forget was right. It is so touching. How did the Elephants know? I guess it is like when I hear  clients, who come for bereavement counselling, say they knew a loved one was going to die. They had a sense, could not describe it, but they just knew.