Historiae animalium

The Historiae animalium is a monumental work by Conrad Gesner, a Swiss physician and naturalist, published in the mid-16th century. It was a systematic compilation of information on animal life, aiming to distinguish observed facts from myths and popular errors.1

The first volume, published in 1551, focused on viviparous quadrupeds. Subsequent volumes covered oviparous quadrupeds, birds, and fish. Gesner's work was significant for its detailed descriptions and the use of illustrations, which helped to fix the accuracy of data and contributed to the emergence of scientific zoology. This encyclopedic approach built upon earlier works like Pliny the Elder's Historia naturalis, which also compiled knowledge about animals, though with a more naive approach. Gesner's efforts were crucial in advancing the critical study of nature.12