External Features of Rattus Norvegicus (With Diagram) | Zoology

In this article we will discuss about the external features of rattus norvegicus. The body can be divided into head, short neck and trunk (Fig. 1.131). The whole body of Rattus Norvegicus is covered by gray hairs. The head is pro­duced anteriorly into a blunt shout, which ends into a terminal mouth. The upper lip has a vertical slit. The [...]