Zoomorphism and untrophomorphism are important developmental stages of religion in mankind history. Humans who were once considering animals as gods, gradually declared themselves as gods. At these stages, animals are the most important patern of mythological values created by human thought. Human-animal and animal-human differentiations and transitions arc the most seen events in the mythology of various human populations. In this study, the trip in mythological history of 19 mammals which arc important for veterinary medicine is presented and human-animal relationship until the monotheist religions was tried to be considered and evaluated mythologically.