we just got this puppy from rescue sheis 8 weeks old and we knoe her mom was a boxer but not her daddy, she is white with black spots on her ears and face and has a very short boxer coat with a natural bobtail? we were told possibly jack russel but i dont see it im thining mabye bulldog? she has wrinkly skin and is very mellow and quiet, i think its very intresting her brother was white with large black patches any ideas?