OP- you posted while I was writing. I know your DD will grow out of it but it is hard, good friends of ours have a 2yr old biter, last week they got called up by CC about it, they felt like being called to principals office. At the CC they just remove him from the situation and sit him on a chair with a book. I think once they get more verbal they grow out of it, its more frustration with not being able to express themselves. And its always handy when your DH gets to see what you deal with on a day to day basis!