In general, toy dogs are very small canine companions. They're purposefully bred at a small weight and height, and their appearances hardly differ from their larger counterparts (if they even exist). The Yorkshire Terrier (a.k.a. Yorkie) for example, is the smaller version of the larger terrier. It's so small in fact, people often carry their Yorkies around in a purse or large pocket (better known as a dog carrier). Because they belong to the toy dog group, Yorkshire Terriers are therefore sometimes referred to as toy Yorkies.  read more »