
1929 – 2021
Richard Lewontin (1929–2021) was an American evolutionary biologist and geneticist at Harvard University, widely regarded as one of the most influential figures in 20th-century evolutionary theory. He made foundational contributions to population genetics and was a prominent critic of genetic determinism, reductionism in biology, and the misuse of statistical methods in behavioral genetics.
Co-developed (with J.L. Hubby) the use of gel electrophoresis to measure genetic variation in natural populations, founding modern molecular population genetics
Introduced the concept of the 'dialectical biologist' and co-authored 'The Dialectical Biologist' with Richard Levins
Authored 'The Genetic Basis of Evolutionary Change' (1974), a landmark text in population genetics
Delivered the influential 1990 Massey Lectures published as 'Biology as Ideology', critiquing genetic determinism
Developed rigorous critiques of heritability statistics and the misapplication of association studies to complex traits