Rodents are mammals of the order Rodent , characterized by a single pair of continuously growing incisors in each of the upper and lower jaws that must be kept short by gnawing. About 40% of mammal species are rodents, and they are found in vast numbers on all continents other than Antarctica . Common rodents include mice , rats , squirrels , porcupines , beavers , guinea pigs , and hamsters . WHERE RODENT CONTROL IS NECESSARY ? Rodent Control is a must in the following places: 1) Domestic Houses 2) Libraries 3) Restaurants & Hotels 4) Hospitals & Nursing Homes 5) Food Grain Godowns WHY RODENT CONTROL IS NECESSARY ? Rodent Control has been found to be necessary for various reasons at various places of which few are detailed below: 1) A considerable quantity of food grains are destroyed throughout the globe by Rodents. So if the population of rodents are not controlled then preservation of food grains may become a next to impossible task. 2) B