That is standard across breeds for the runt who was smaller at start and remained small. But the opposite can also be mentioned for runt puppies. Any breed is often dwarfed down and lots of of modern breeds are breed over generations to cut back measurement for a selected rationale. http://teacup-maltipoo03409.ampedpages.com/A-Review-Of-teacup-puppy-for-free-26442972