" When we do it, it is for art. When they [animals] do it, it is for competition. Both may be true. What is disturbing and irrational is the decision to explain human behavior in spiritual terms of a sense of beauty, and animal behavior in mechanistic terms of demonstrating fitness. The object, yet again, seems to be to define humans as higher and unique. "

― Jeffrey Moussaieff Masson , When Elephants Weep: The Emotional Lives of Animals