Chim Chim Cher-ee by one of the drawings of a chimney sweep created by Mary Poppins' screenwriter, Don DaGradi. When asked about the drawing by the Sherman Brothers, DaGradi explained the ancient British folklore attributed to "sweeps" and how shaking hands with one could bring a person good luck. In their 1961 treatment, the Sherman Brothers had already amalgamated many of the P.L. Travers characters in the creation of "Bert". His theme music became "Chim Chim Cher-ee". In addition to the "standard" version of the song which Bert sings to the children, he sings short snippets of the song to himself at various
Robert Yerkes observe chimps on his own. He began by purchasing two chimpanzees, Chim and Panzee, from a zoo. He brought the two chimps home, where they lived in a bedroom and ate with a fork at a miniature table. Chim was a particular delight for Yerkes, and the summer that chimp and psychologist spent together is memorialized in "Almost Human" (1924). In 1924, Yerkes was hired as a professor of psychobiology, a field he pioneered, at Yale University. He founded the Yale University Laboratories of Primate Biology in New Haven, followed by his Anthropoid Breeding and Experiment Station in Orange Park,