Ok, I know there are lots of posts about Biewers and Parti's and all that. But I'm not sure that I understand lol. The chocolate ones and red ones come from just a standard yorkie right?, they just randomly happen? And I think Biewers come from biewers ... where do partis come from? are there any other yorkies? lol sorry for sounding dumb, but I want to know where they all come from, I think its pretty interesting. Thanks