The Passing of the Pink Elephant: A Textbook of Psychopathic Zoology is a book written by Frank Vincent Waddy and published in 1919. The book is a humorous and satirical take on the field of zoology, exploring the strange and unusual behaviors of animals from a psychological perspective. The title of the book refers to a fictional species of elephant that is pink in color and exhibits bizarre behaviors, such as standing on its head and singing operatic...