Jean Louis Rodolphe Agassiz was a Swiss-American scientist who made significant contributions to the fields of geology, zoology, and natural history. As a renowned naturalist, he helped establish the field of glaciology and popularized the concept of the Ice Age. Synonyms for Jean Louis Rodolphe Agassiz include J.L.R. Agassiz, Jean Agassiz, and Rodolphe Agassiz. He is also sometimes referred to as an ichthyologist, a paleontologist, or a biologist due to his contributions to these specific areas of study. His dedication to the natural sciences and his legacy as a pioneer in his field have earned him a distinguished place among the most influential figures in scientific history.