In July 2005, the UC Regents voted unanimously to create the College of Biological Sciences at UC Davis. Prior to that vote, the biological sciences majors were housed in a Division of Biological Sciences, shared between two other colleges on campus.
Although its founding departments were created as early as 1922, the Division of Biological Sciences was officially established in 1970. Designed to provide an organizational framework for undergraduate biology programs, the division linked the College of Letters and Science departments of bacteriology, botany, and zoology with the College of Agricultural and Environmental Sciences departments of animal physiology, biochemistry and biophysics, and genetics.
The original six departments were reorganized into the following five sections: (1) evolution and ecology, (2) microbiology, (3) molecular and cellular biology, (4) neurobiology, physiology, and behavior, (5) plant biology. They were re-named departments in 2008 and remain today.