 After doing some research................
"The Complete Yorkshire Terrier" by Joan Gordon"
"Each Yorkie puppy commences its transition from the newly-born black-and-tan to the adult blue-and-tan by its own inherited and constructed glandular system. The combination of its inherited genes from its� sire & dam at conception, and the development of the fetus into a thriving new born puppy, determines the health and makeup of the glandular system that supplies the pigment for the hair, skin, eyes, eye rims, nose, and toenails."
Just found this and wanted to post it for anyone else out there who might be wondering about the same thing...............
__________________  Janis, Rookie and Rylee Belle  |