Comparative non-metric and morphometric analyses of rats at residential halls of the University of Benin campus, Nigeria.

Background: In mammals and across rat species, the variation in conformation is markedly observed in the head and the variation in the shape of the head is mostly determined by the shape of the skull. Hence comparative topographic analysis and morphometry is a veritable tool in precise categorization of peri-domestic rats and species identification.

Methods: Killed rodents around residential dwellings of students on campus were collected and measurements taken of external morphology.