Rudolf Leuckart was considered the "Father of Parasitology" as well as one of the most famous zoologists of the 19th century. He began his career in zoology shortly after earning a M.D. degree from the University of Gottingen when he embarked on a scientific expedition to the North Sea to study marine invertebrates. His careful descriptions of morphologic details gave major support to the newly established field of animal systematics: the idea that evolution can be traced through structural changes. Leuckart was awarded an assistant professorship at age 28 followed in 1869 by a full professorship at the University of Leipzig.
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