a digital library of Unitarian Universalist biographies, history, books, and media
the digital library of Unitarian Universalism
Home » Biographies » Ernst Mayr

Ernst Mayr

Ernst MayrBorn in 1904 in Germany, Mayr trained as a medical student but realized he had a greater passion for studying birds and biology. Emigrating to the United States, he became a curator at the American Museum of Natural History, working on bird classification while formulating his key ideas about evolution. In 1942 he published his most important work, Systematics and the Origin of Species. Mayr moved to Harvard University in 1953 and served as director of the school’s Museum of Comparative Zoology from 1961 to 1970. Since then, he has published a number of books and chapters and received the prestigious Japan Prize for Biology in 1983.

In his landmark 1942 book, Mayr proposed that Darwin’s theory of natural selection could explain all of evolution, including why genes evolve at the molecular level. On the stubborn question of how species originate, Mayr proposed that when a population of organisms becomes separated from the main group by time or geography, they eventually evolve different traits and can no longer interbreed.

Moreover, Mayr declared that the development of many new species is what leads to evolutionary progress. Without speciation, there would be no diversification of the organic world, no adaptive radiation, and very little evolutionary progress. The species, then, is the keystone of evolution.”

—Courtesy of WGBH, Boston

Recommended Reading

This Is Biology: The Science of the Living World by Ernst Mayr

Click here to view Supplemental Reading to Ernst Mayr on Amazon.

Series Navigation<< Janet MaslinErnest May >>

Notable in UU History
Ichabod Nichols

Nichols, Ichabod (1784-1859)

Ichabod Nichols was born in Portsmouth, New Hampshire, July 5, 1784. His parents were Ichabod and ... Read More
Elizabeth Palmer Peabody

Peabody, Elizabeth Palmer (1804-1894)

Greatly esteemed in the 1800s as part of the intellectual elite in Boston—a member of the ... Read More
Peggy Charren

Peggy Charren

Peggy Charren is the founder of Action for Children's Television, a national child advocacy organization that ... Read More
Lloyd Rodwin

Lloyd Rodwin

Lloyd Rodwin was the Ford International Professor Emeritus of Urban Studies and co-founder of the MIT-Harvard ... Read More