Comparative anatomy
Edward Tyson is regarded as the founder of modern comparative anatomy. He is credited with determining that whales and dolphins are, in fact, mammals. Also, he concluded that chimpanzees are more similar to humans than to monkeys because of their arms. Marco Aurelio Severino also compared various animals, including birds, in his "Zootomia democritaea", one of the first works of comparative anatomy. In the 18th and 19th century, great anatomists like George Cuvier, Richard Owen and Thomas Henry Huxley revolutionized our understanding of the basic build and systematics of vertebrates, laying the foundation for Charles Darwin's work on evolution. An example of a 20th-century comparative anatomist is Victor Negus, who worked on the structure and evolution of the larynx. Until the advent of genetic techniques like DNA sequencing, comparative anatomy together with embryology were the primary tools for understanding phylogeny, as exemplified by the work of Alfred Romer.
Alessandro Benedetti
Alessandro Benedetti (1450?–1512) was born in Parma, traveled and worked extensively in Greece and Crete, and worked as surgeon general of the Venetian army. His “Anatomice, or The History of the Human Body” is a descriptive anatomy in the style of Mundinus. It concludes with a final chapter on the praise of dissection. He expresses the need for a clinical examination rather than uncritical trust in the authorities “since in it we see the truth and contemplate its revelations as the works of nature lie under our eyes… but those who trust only the monuments of literature… are often deceived and entrust opinion rather than truth to their minds.” He later describes a postmortem examination of a woman who had died of syphilis and the disease’s effects on her bones.
Benedetti critiqued those anatomists who trusted in the authorities more than their own experience: “Aristotle has had so much authority for so many centuries that even those things which [physicians] have not seen they will affirm to exist, even without experiment.” Benedetti valued personal observation over blind trust in the authorities and even, shockingly for the time, corrected Aristotle. “Aristotle believes that the nerves first arise from the heart… but almost all of them (as is more evidently established) are perceived to originate in large part from the brain….” Medieval scholars preferred to trust the authorities over their own observations, while this new generation of anatomists increasingly valued the experience over theory.