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Is it normal?
I've jsut got a jack russell puppy. He is 8 weeks old, and i've noticed he has began to try and bite things. I understand that his teeth are hurting him and he wants them to fall out, and he gets told off if he tries to bite a person. However recently i saw him biting his right back foot, and wondered if this was normal or maybe it was hurting him or there was a problem?