1) Origin Today, Yorkshire Terriers are popular companion dogs, but when originally bred in mid-1800s, they were well-regarded for being effective ratters. Today, the breed has been bred slightly smaller and is seldom used for killing vermin, but Yorkies still retain plenty of the feistiness that made them great exterminators. … Continue reading Small in size but big in personality, Here are TOP 10 interesting facts about Yorkshire Terrier.