i too have met a "bad apple" or two before... super young things who thought they were king of the puppy pile... siblings all sweet and normal and this puppy just NASTY with no sense of right or wrong...
it happens.
violeta not saying this is YOUR puppy, just saying that yes SOME puppies do show aggression at that age, it is NOT play growling, and it has to be nipped in the bud asap or the problem will only get bigger with the puppy... have you started puppy boot camp yet?
