John Tyler Bonner (May 12, 1920 – February 7, 2019) was an American biologist who was a professor in the Department of Ecology and Evolutionary Biology at Princeton University.
He was a pioneer in the use of cellular slime molds to understand evolution and development over a career of 40 years and was one of the world's leading experts on cellular slime moulds.
Arizona State University says that the establishment and growth of developmental-evolutionary biology owes a great debt to the work of Bonner’s studies.
His work is highly readable and unusually clearly written and his contributions have made many complicated ideas of biology accessible to a wide audience.