When it comes to dog preferences, there are those who love the strength and size of large dog breeds such as the Great Dane and St. Bernard, while others prefer the comfort of a smaller, lap dog type such as a Toy Poodle or Bichon Frise. For those who love small dog breeds, there’s none smaller than the tiny, but fearless, Chihuahua. Despite their diminuitive size, this popular breed has a great deal of courage and a sense of self importance that belies their size, all without a hint of an inferiority complex. Their small stature has earned them the distinction of being the smallest dog breed and it’s not always easy being the smallest dog in the world.

How tiny can the smallest dog actually be? The previous record for the smallest dog in the world was held by a Chihuahua living in Slovakia who measured only five-and-a-half inches in height. This dog passed away several years ago. The record for the smallest dog was set to be taken over by Dancer, a five inch high Chihuahua living in Lake County, Florida until two other Chihuahuas ousted the title from him with the record finally going to Boo Boo, a four inch high member of the Chihuahua breed. Sadly, Dancer passed away suddenly about eight months ago after receiving certification as a therapy dog.

Besides being the smallest dog breed, Chihuahuas are often fiercely devoted to their owners and will fearlessly protect them should they perceive a threat. Although there’s only so much damage you can do as the smallest dog in the world, the Chihuahua puts on a fierce front which goes to show how attitude is everything. Many Chihuahua owners joke that the breed would be a terror if they weighed as much as a German shepherd.

The smallest dog in the world loves activity, particularly if done with their owner and is not overly fond of being left alone. Therefore, they can be a time intensive breed and are not the ideal dog for an owner who works all day and rarely has time to spend with a pet. They’re also generally not fond of children and have been known to growl and nip at them if provoked. Having a Chihuahua with children in the house can take some training on the part of both dog and child.

If you’re considering the Chihuahua, the smallest dog in the world, as a pet, don’t be fooled by the size. Small doesn’t necessarily mean less work. Having a Chihuahua will require a considerable time commitment on your part, but with a dog this affectionate and loyal, it’ll be worth it.