rodents mouth haven't tusks rodents body are cylinderical , it's legs are short ,fore legs are longer than hind leg ,neck is thick, eyes are wide ,fore legs have 4 finger, hind legs have 5 finger,it's body cover by fur rodents brain are small size and free of convolutional , presence of Scales on rodent tails oily glands are spread under hair base ,but there is no sweat gland Different form of claws there claws for climbing and other drilling - and most important characteristic of the head muscles of the lower jaw and connected to the hinge allowing the movements of the bites so that it moves the lower jaw in the course of this process is not from the bottom to the top or sides, but from front to back and vice versa Urinary system and reproductive systems of two different modes and forms of scientifically demonstrate the survival of these animals in the degree of development of late
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