4. Shetland Sheepdog
The Shetland Sheepdog may look just like a miniature collie, but they started as a local variant of the Icelandic sheepdog found in the Shetland Islands. These small dogs were then bred to rough collies to create this unique breed.
Playful and energetic, the sheltie is equally at home working on the farm or in the ‘burbs, showing off in agility, flyball, and obedience. These dogs are well-known for their intelligence and skill at herding but are also good guard dogs as they bark and are wary of strangers.