Dr. Colin G. Scanes is Professor Emeritus of Ecology, Evolution & Behavior at the University of Wisconsin, Milwaukee. He obtained his PhD from the University of Wales and his DSc from Hull University. His research interests include anthrozoology; animal physiology, nutrition, and production; and veterinary medicine. He has received numerous awards for his research in animal and agricultural sciences, most recently from the American Society of Animal Science. In addition to faculty positions with the University of Wisconsin, Iowa State University, and Mississippi State University, Dr. Scanes has worked various federal positions with the USDA, SANREM CRSP, DOE, and EPA FQPA.

He has led the development of more than a dozen books, including the first edition of Animals and Human Society and the 6th and 7th editions of Sturkie's Avian Physiology. Dr. Clive Phillips, now retired, was Australia's first Professor of Animal Welfare at the University of Queensland. He obtained his BSc in Agriculture from the University of Reading and his PhD in Livestock Nutrition and Behavior at the University of Glasgow. He served as the foundation director of the Centre for Animal Welfare and Ethics and has researched the welfare of farm, zoo and companion animals, animal nutrition, and animal transport and production. Dr. Phillips currently chairs the Queensland and Western Australian Governments' Animal Welfare Boards.