Human uses of mammals that "one is well advised to study the behaviour rather than attempting to get at any underlying emotion". Charles Darwin however had accepted the idea of emotion in animals, writing his 1872 book "The Expression of the Emotions in Man and Animals" on the subject. Darwin believed that mammals had social, mental and moral lives. In "The Descent of Man" (1871), he wrote: "There is no fundamental difference between man and the higher mammals in their mental faculties." Biologists remained wary of the idea, even for the great apes, but this led to serious difficulties, as Donald O. Hebb explained
The Man Who Traveled in Elephants where he meets with his dead wife and dog, and with the imaginary animals he and his wife invented as traveling companions, as well as a host of other friends. The tone is realistic, as are the descriptions of the narrator's life before he boards the Bus to the Fair. After consideration, it could be considered magic realism. The Man Who Traveled in Elephants "The Man Who Traveled in Elephants" is a short story written in 1948 by Robert A. Heinlein. It was first published as "The Elephant Circuit" in the October 1957 issue of "Saturn Magazine". It later appeared