Hi there, I breed larger yorkies, I just started a website its not quite finished. i need to get the parents pictures on there but the puppies are in the photo album. Moose the largest is just like his name. lol He is probably already 4lbs at 5 weeks. The littlest is 1 lb. The difference is crazy. We had a litter of 5 boys and 1 girl and the boy being the largest. And only one tiny female, the rest are inbetween the two. If you have any questions or want to see more pictures let me know.