Aww, she is really cute. Her paws are small; she probably won't grow to be a big dog. Her head looks vaguely reminiscent of pit bull terrier but I've only seen adults, not puppies. Anyway, the pit bulls I've known have been nice; you just have to bring them up right. They DO have a very powerful bite and any dog might bite when startled so the vets used to muzzle them when we were working on them just to be safe. But your girl is so tiny, I'm not really sure that it IS pit bull I'm seeing.