Liz Buchanan BVSc MRCVS
Whatever the cause of a lack of interest in food for a rabbit, it is serious. Rabbits in the wild spend most of their day chewing. When rabbits do not chew enough, their teeth become imperceptibly longer, which prevents the mouth from closing properly. In these cases, the skin of the mouth and the face appear to close as before, because the soft tissues of a rabbits' face are flexible. But the jaws do not come together the same, so they grind down food less efficiently.