The Yorkshire Terrier began as a working ratter in the mills and mines of nineteenth-century northern England, where workers crossed small Scottish terriers to get a dog that could slip into tight spaces. Today's Yorkie usually weighs around seven pounds, with a fine, silky, steel-blue and tan coat that grows like human hair and sheds little.
That terrier heritage still shows. Yorkies are confident, curious and affectionate, and they bond closely with their people. They're quick to sound the alarm, which matters in Oakland buildings with shared walls. They're also fragile around rough play and prone to dental disease, so plan for regular grooming, patient house training and frequent small meals for very young or tiny dogs. Dogs vary, so a Yorkie's own personality counts for more than the breed label.