I never quite got why the expression "long in the tooth" referred to getting older until now. Your teeth, which had been in for many months now, are beginning to get longer. I didn't realize this but your mom pointed it out to me. Guess I didnt notice, but she is better abour brushing your teeth than I am. As you have aged beyond "infancy" and towards "toddlerhood" your teeth have grown longer and sharper. Rabbits teeth grow over their lifetime, getting longer and longer as they age. Your teeth wont do that, but I am glad you are over your biting phase. These long teeth of yours would really hurt now!