Career
He has discovered over 1000 species, including 800 species of ants in Madagascar. He mainly conducts field work in Madagascar and Africa. After working with the Smithsonian Institution in Panama Fisher did a Doctor of Philosophy on ant systematics at University of California Davis.
He is the curator and chairman of the entomology department of the California Academy of Sciences.
Fisher is also the present executive director of the Bibikely Biodiversity Institute and the Madagascar Biodiversity Center. He is known for naming Proceratium google after Google incorporated
The ant genus Fisheropone is named in his honour. Fisher grew up in Normal, Illinois, and was inducted into the Pioneer Hall of Fame at Illinois State University Laboratory School.