Clark E. Adams was an Emeritus Professor in the Department of Wildlife and Fisheries Sciences (WFSC) at Texas A&M University in College Station, Texas. He received a B.S. in biology from Concordia Teachers College, Seward, Nebraska; an M.S. in biology from the University of Oregon; and a Ph.D. in Zoology from the University of Nebraska - Lincoln. He chaired the Conservation Education Committee for The Wildlife Society (TWS), edited the newsletter for the Human Dimensions of Wildlife Study Group, was a member of the Urban Wildlife Management Working Group, and chaired many committees for the Texas Chapter of TWS. He was a past president of the Texas Chapter of TWS and TWS Southwest Section. Since 1981, he and his students conducted and published many national, regional, and statewide studies on the public's activities, attitudes, expectations, and knowledge concerning wildlife. He developed the degree option in urban wildlife and fisheries management for the WFSC, and developed and taught the senior-level urban wildlife management course. He was the senior author on two other books titled Texas Rattlesnake Roundups (Texas A&M Press, 2008) and Urban Wildlife Management 3rd (Taylor and Francis, CRC Press, 2016). He was the recipient of the 2015 Outstanding Achievement in Urban Wildlife Conservation award from the TWS Urban Wildlife Working Group. Adams completed a 51-year teaching and research career on August 31, 2015.

Cassandra LaFleur Villarreal has worked as an Environmental Specialist in the Dallas/Fort Worth area for over five years specializing in water quality. She received her B.S. in wildlife and fisheries sciences from Texas A&M University in 2014. Cassandra developed an interest in urban wildlife after taking an Urban Wildlife Management course in 2012. In 2013, she began working for Dr. Clark E. Adams as a student worker. While working for Dr. Adams, Cassandra contributed to Urban Wildlife Management, 3rd ed. She developed an alternative method of examining urban biodiversity using literature (peer-reviewed articles and field guides), rehabilitation center intake data, national data sets on bird species per state, and mapping methods such as Global Biodiversity Information Facility (GBIF). She conducted a meta-analysis of the relationship between a species resident by state(s) and observation of that species in an urban setting. This analysis included all native species of terrestrial herpetofauna, birds, and mammals known to exist in the United States. Her analysis and results let to the production of an entire new section and five new chapters in the third edition.