Leon Croizat

Leon Croizat (1894-1982) was a French-American biologist and geographer known for his work in biogeography, the study of the distribution of living organisms across the planet. He developed the concept of "panbiogeography," which emphasizes the importance of historical and geographical factors in understanding species distribution. Croizat argued that organisms are not just products of their environment but are influenced by their evolutionary history and the geological history of the Earth. His ideas challenged conventional views and greatly contributed to the fields of ecology and evolutionary biology, providing insights into how species adapt and spread over time.