John McCall has been a member of the UWA Biology faculty since 1992, and served as chairperson from its inception in 1994 until 2007.

Prior to completing his Ph.D. in Zoology and a Master's of Applied Statistics at LSU in 1992, Dr. McCall taught and coached for a number of years at Jay High School in Jay, Florida. At UWA, he regularly teaches Evolution and Systematics, General Zoology, Field Zoology, and Applied Statistics, as well as mentoring the department's seminar offering. In addition, he periodically offers courses in Ichthyology, Aquatic Biology, and Subtropical Ecology. Dr. McCall is also active in UWA's online graduate biology program, offering online classes in Evolution, Biogeography, Conservation Biology, and Teaching College Biology.

Dr. McCall's classes typically include a significant amount of field work, and he emphasizes student research in marine and aquatic habitats. Dr. McCall advises marine biology majors, pre-forestry and pre-fishery students, and a number of general biology majors. Dr. McCall's research interests lie in the area of evolutionary ecology, and much of his field work focuses on interactions between fish and their invertebrate prey. He serves as the University liaison to the Marine Environmental Sciences Consortium Program Committee. Dr. McCall is the faculty advisor for the Beta Phi Chapter of the Beta Beta Beta Biological Honor Society.

In 1997, Dr. McCall received the Gilbert Award recognizing outstanding teaching, He received a second Gilbert Award in 2009. In 2007 he was the recipient of the Loraine McIlwain Bell Trustee Professor Award.