Factually accurate and fun to read, this is a good and interesting book that is species comprehensive. The pet food industry is huge, over $40 billion a year, and this unique reference work is the bookstore basic biology companion animal book. It can help you learn about your companion pet's biology and have fun, and provides a simple scientific resource for the reader interested in confirming that what they do is appropriate, while providing a starting place for those interested in more specific and complex information.Principles of Companion Animal Nutrition provides critical basic biology information, scientific processes, history, and data related to companion animals ( dogs, cats, horses, rabbits, llamas and alpacas, birds, fish, rodents, reptiles and amphibians); it covers all of the major classes and orders of pets in a brief, light, basic way–it's not “expert dry and dull.”For pre-veterinary and veterinary workers and others in the animal sciences; as well as non-academic hobbyists, information-seekers, and pet-lovers everywhere.