my wife and i took in a supposedly pure bred rottie pup a while back. she is around 3 months old now. anywhoooo... she has developed wavy hair down her back. my wife thinks she is german rottie. i (must admit) that i dont know a whole heck of a lot about rotties, but i just figured it was either that she is mixed or a genetic flaw. any thoughts? i will post pics if i can get a decent one.