#6 The Shetland Sheepdog, often known as the Sheltie
Sheltie is very distrustful of strangers. She does not tolerate familiarity: flirting with her, the desire to scratch behind the ear. Sheltie belongs to the category of dogs that are easily trained.
#7 Labrador Retriever
For centuries, these dogs, with an otter-like tail, have helped local fishermen pull nets out of the water to the shore. In 1903, the Labrador Retriever was recognized by the English Club of Dog Breeding as an independent breed.