Gerald N. Callahan
Gerald N. Callahan was a professor in the Department of Microbiology, Immunology, and Pathology and the Department of English at Colorado State University in Fort Collins. He wrote a number of books, including Lousy Sex: Creating Self in an Infectious World; Between XX and XY: Intersexuality and the Myth of Two Sexes; Faith, Madness, and Spontaneous Human Combustion: What Immunology Can Teach Us about Self-Perception; Infection: The Uninvited Universe; and River Odyssey: A Story of the Colorado Plateau; and coauthored Basic Veterinary Immunology.
For arthropods, male-versus-female sex has more to do with infections than it does with genes or chromosomes.
Creating Self in an Infectious World