Jerry Allen Coyne (born December 30, 1949) is an American biologist, known for his work on speciation and his commentary on intelligent design. A prolific scientist and author, he has published dozens of papers elucidating the theory of evolution. He is currently a professor emeritus at the University of Chicago in the Department of Ecology and Evolution. His concentration is speciation and ecological and evolutionary genetics, particularly as they involve the fruit fly, Drosophila. He is the author of the text Speciation and the bestselling non-fiction book Why Evolution Is True. Coyne maintains a website also called Why Evolution Is True. He self-identifies as a determinist of the incompatibilistic variety.