Eridaction topics for rodents in veterinary medicine history and appears of 6 types of mice in 1200 before century of history called in Latin language ratus ratus cahernicus rats and arvicancus niolicaus and mus musclus rat and filed rat and house rat in medicine which as etiological cause lepto spiroisis infectious and cattle plague and human plague and anthropology definition to find vital answer to lose the trading in whole world