My favorite line from The Story of Dr. Dolittle ahead:
Dr. Dolittle asks the rare, two-headed pushmi-pullyu to go abroad with him.
Dr. Dolittle: “Excuse me, surely you are related to the Deer Family, are you not?”
“‘Yes,’ said the pushmi-pullyu, ‘to the Abyssinian Gazelles and the Asiatic Chamois-on my mother’s side. My father’s great-grandfather was the last of the Unicorns.'”