Today in 1769 Georges Cuvier, French naturalist, was born. Famous for his work in comparative anatomy and paleontology, Cuvier also established the concept of extinction as a fact.
The above is a a plate from The animal kingdom, arranged after its organization, forming a natural history of animals, and an introduction to comparative anatomy. By the late Baron Georges Cuvier … . A later English translation of one of his seminal works, many of which you can check out on the Biodiversity Heritage Library, including this copy of Leçons d’anatomie Comparée which was owned by Charles Darwin.