Zoology Author:Miller Principles - oriented introductory zoology text for non-majors or combined majors/non-majors (freshman-sophomore level). There may or may not be a prerequisite of general biology or chemistry. It can be found in community colleges, 4 year colleges, universities, and agri-tech schools. Miller/Harley is slightly lower level than the Hickman books ... more »and has more pedagogy.« less