Louis Agassiz was a prominent Swiss-American biologist, geologist and educator. He was known for his contributions to the study of natural history and for his pioneering work in the field of glaciology. He was also a staunch advocate of the theory of creationism, which put him at odds with many scientists of his time. Some synonyms for Louis Agassiz include scientist, naturalist, scholar, educator, pioneer, and creationist. He was also a notable figure in the fields of paleontology, ichthyology, and zoology. Despite his controversial views on evolution, Agassiz remains an influential figure in the history of science.