Following on from Phil Piper's comments on the terrestrial habits of the
water vole, I draw your attention to this paper, (below) which comments upon the
changes in tooth, and especially incisor morphology, with reference to
terrestrial behaviour, and fossorial lifestyle.
Montgomery, W. I. (1975). On the
relationship between sub-fossil and recent British Water voles. Mammal Review 5: 23-29.
Jim
Williams