Dobzhansky, Theodosius (1900-1975), a United States geneticist. He is credited with founding the field of evolutionary genetics. In Genetics and the Origin of Species (1937), he synthesized (integrated) Darwin's theory of evolution and Mendel's theory of genetic variability. (Dobzhansky's theory of evolution was later referred to as the Synthetic Theory.)

Dobzhansky was born in Nemirov, Russia. He graduated from Kiev University in 1921. In 1927 he came to the United States to do research at the California Institute of Technology. Dobzhansky taught at Columbia University, 1940-62. He did research at Rockefeller University from 1962 until his retirement in 1971.