Richard D. Alexander

Alexander's publications related to the evolution of behaviour and its bearing on human nature. After his retirement in 2000, he devoted most of his time to his horse farm, where he bred, reined, trained and rode them.

In 1974 he created a detailed model for a eusocial vertebrate, having no idea that a mammal with these characteristics actually existed. It turned out that his hypothetical eusocial rodent was a "perfect description" of the naked mole-rat (Heterocephalus glaber).

Alexander obtained an associate of arts degree from Blackburn College (Carlinville, Illinois) in 1948, a bachelor of science in education (biology) and a PhD from Ohio State University in 1956. He joined the University of Michigan faculty in 1957. He was the Donald Ward Tinkle Professor of Evolutionary Biology from 1984–89 and was named the Theodore H. Hubbell Distinguished University Professor of Evolutionary Biology in 1989. He served as director of the Museum of Zoology from 1993–98. For over 40 years, Alexander taught two graduate courses in alternate fall semesters: evolutionary ecology and evolution and behavior; during these semesters he dedicated all his time to prepare his lecture materials — fresh and up-to-date every year — which included many a time novel, provocative ideas from his own students and university colleagues; among which Prof. Donald W. Tinkle, curator of herpetology at the UMMZ and evolutionary biologist, was very prominent until his death in 1980. His course lectures were perhaps the most popular in the schools of natural sciences and natural resources at the university and were often attended by other faculty members and visiting students including many from the social sciences (anthropology, geography, sociology, psychology).

Richard D. Alexander (November 18, 1929 – August 20, 2018) was an American zoologist who was a professor at the University of Michigan and curator at the university's museum of zoology of in Ann Arbor, Michigan. His scientific pursuits integrated the fields of systematics, ecology, evolution, natural history and behavior. The salient organisms in his research are wide-ranging, from the orthopterans (grasshoppers, katydids and crickets) and cicadidae (cicadas) to vertebrates: dogs, horses, and primates, including humans.