If it makes you feel any better, my puppy I will begetting soon is different from his brother. They are from the same litter but mine has a slightly longer face, longer ears and is all around bigger bones. His brother was real small, tiny ears and a real little face. My boy is charting to be a whole 2 pounds larger than his brother at adult weight. They are AKC, pure bred so yes, pure bred yorkies can range in size even if they are from the same litter |