Why is Louis agassiz important?

Louis Agassiz was a prominent 19th-century naturalist and geologist, best known for his contributions to the study of glaciers and the development of the concept of ice ages. He played a crucial role in establishing ichthyology as a scientific discipline through his extensive research on fish, including the classification of various species. Agassiz also advocated for the importance of observational science and field studies, influencing future generations of scientists. His work laid foundational principles in both Paleontology and environmental science.