Dobzhansky

Theodius Dobzhansky was a prominent evolutionary biologist, best known for his foundational work in the field of population genetics and his significant contributions to the modern evolutionary synthesis. Born in Ukraine in 1900, he later moved to the United States, where much of his influential research took place. Dobzhansky's studies, particularly his extensive work with fruit flies (Drosophila), provided crucial empirical evidence for the integration of genetics and natural selection.

His most famous book, "Genetics and the Origin of Species" (1937), published as part of the Columbia Biological Series, was instrumental in bridging the gap between Mendelian genetics and Darwinian evolution. This work outlined how genetic variation within populations, coupled with natural selection, could lead to the formation of new species over time. He emphasized the importance of gene flow and mutation as sources of variation and explored the genetic basis of evolutionary change.

Dobzhansky's research also highlighted the significance of genetic diversity in the survival and adaptation of populations. He advocated for a broad, holistic view of evolution, encompassing not just genetics but also ecology, paleontology, and systematics. Throughout his career, he was a passionate educator and mentor, influencing generations of scientists. His work laid much of the groundwork for modern evolutionary biology and continues to be cited and studied by researchers worldwide. Dobzhansky passed away in 1975.