Nothing in biology makes sense except in the light of evolution.

Theodosius Grygorovych Dobzhansky ForMemRS (Ukrainian: Теодосій Григорович Добжанський; January 24 1900 - December 18 1975) was a prominent geneticist and evolutionary biologist and a central figure in the field of evolutionary biology for his work in shaping the unifying modern evolutionary synthesis. He was awarded the National Medal of Science in 1964 and the Franklin Medal in 1973. He publiTheodosius Dobzhanskyd a major work of the modern evolutionary synthesis Genetics and the Origin of Species in 1937.