Interestingly, scientists used to think that rabbits and hares were indeed rodents, but their dentition is not the same as a rodent’s. Though their incisors also keep growing, rabbits have two pairs in their upper jaw instead of the rodent’s one pair. Rabbits and hares are now considered lagomorphs instead of rodents. Yet, lagomorphs and rodents have a fairly recent common ancestor and are both parts of a clade called Glires.