Ian R. Tizard, BVMS, BSc, PhD, DSc (Hons), DACVM, is a Diplomate of the American College of Veterinary Microbiologists and a University Distinguished Professor Emeritus of Immunology, Department of Veterinary Pathobiology, The Texas Veterinary Medical Center at Texas A &M University (TAMU), College Station, Texas, USA. Dr. Tizard earned his Bachelor of Veterinary Medicine and Surgery from the University of Edinburgh, Scotland, in 1965. He then completed a Bachelor of Science in Pathology and a PhD in Immunology. After completing his studies, Dr. Tizard became a Post-Doctoral Fellow at the University of Guelph, where he remained as a professor until 1982 when he moved to TAMU. Dr. Tizard wrote the first standardized textbook on Veterinary Immunology in 1977. This text, now in its 11th edition, is used worldwide, and has played a major role in establishing Immunology among the key disciplines.

SECTION 2: MAMMALIAN ORDERS
11. Monotremes: Echidnas and platypus
12. Marsupials: Koalas and kangaroos
13. Placentals: Cetartiodactyla: camels and llamas
14. Cetartiodactyla: Pigs and peccaries
15. Ruminants: Cattle, and sheep
16. Cetaceans: Dolphins and whales
17. Chiropterans: Bats
18. Carnivora
19. Perissodactyls: Horses
20. Lagomorphs: Rabbits
21. Rodents: Rats and mice
22. Primates: Monkeys, apes, and humans
23. Paenungulates: Elephants and sirenians
24. Xenarthrans: Sloths and anteaters
25. Synthesis