deaths
December 18, 1975
Theodosius Dobzhansky, Ukrainian geneticist and biologist (born 1900)

Theodosius Dobzhansky
Theodosius Grigorievich Dobzhansky was a Russian-born American geneticist and evolutionary biologist. He was a central figure in the field of evolutionary biology for his work in shaping the modern synthesis and also popular for his support and promotion of theistic evolution as a practicing Christian. Born in the Russian Empire, Dobzhansky immigrated to the United States in 1927 at the age of 27.