Early in his career, while teaching in Scientific Gymnasium, Swiss-American zoologist Emil Witschi (1890-1971) published this natural history story book for children, illustrated by his students. Just a few year after publishing Von Blumen und Tieren in Bern, Switzerland, Witschi would continue his career in the United States, going on to the University of Iowa to produce close to 200 scholarly works and train at least 40 students. Much of his zoological research focused on mechanisms of sexual differentiation and development of vertebrates.

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