Sewall Wright

Sewall Wright was a pioneering geneticist known for developing models that explain how genes change within populations over generations. He introduced concepts like genetic drift—random fluctuations in gene frequencies—and helped clarify how both chance and natural selection influence evolution. Wright also studied population structure and the importance of gene flow and inbreeding. His work provides foundational insights into evolutionary biology, illustrating how small, isolated populations can evolve differently and how genetic variation is maintained. Overall, his contributions help us understand the genetic dynamics that drive biological diversity and evolution in natural populations.