Hi mums. My baby is 9 months. He recently got his two front teeth and he has been very much intro biting recently. I'm not sure why but he would bite my nipples when breastfeeding or my hands when he's playing with me, or my husband in his arm. When we tell him it's not okay to bite he smiles at us and thinks it's funny. I'm worried he will bite someone at nursery. Is biting in his age normal? Should I be concerned?