10. BULLDOG

Bulldog is a medium-sized dog breed. They were the 5 th most popular pure-breed in the US in 2017 according to the American Kennel Club. Bulldogs are one of the few breeds whose tail is naturally short. The Bulldog is popularly used to represent England or the United Kingdom. It has been associated with Winston Churchill's defiance of Nazi Germany.

9. ROTTWEILER

Rottweiler is a medium-to-large or large breed of domestic dog. Rottweilers are now also used as search and rescue dogs, as guard dogs, and as police dogs. In 2017, the American Kennel Club ranked the Rottweiler as the eighth-most popular pure-breed in the United States. The Rottweiler is one of the oldest of herding breeds. The dogs were eventually known as Rottweiler Metzgerhunds, or "Butcher's Dogs".

8. DOBERMAN PINSCHER

Doberman Pinscher is a medium-large breed of domestic dog. Dobermans are known to be intelligent, alert, and tenaciously loyal companions and guard dogs. They are generally considered to be loving and devoted companions and can be easy to train and will learn very quickly. The Dobermann Pinscher ranked as the 5th most intelligent dog in the category of obedience command training.

7. SHETLAND SHEEPDOG

Shetland Sheepdog is a breed of herding dog that originated in the Shetland Islands of Scotland. They were originally a small mixed-breed dog. They are hard- working small dog, intelligent, vocal, excitable and willing to please. They are incredibly loyal to their owners to the point where they are often referred to as "shadows" due to their attachment to family.

6. YORKSHIRE TERRIER

The Yorkshire Terrier is one of the smallest dog breed of terrier type. It has a grey, black and tan coat, and the breed's nickname is Yorkie. Yorkshire Terriers are very playful and energetic dogs. It is ranked as the 6th most popular purebred in the United States in 2012 and 2013. A popular companion dog, the Yorkshire Terrier has also been part of the development of other breeds, such as the Silky Terrier.

5. GOLDEN RETRIEVER

Golden Retriever is a medium-large gun dog and has an instinctive love of water and are easy to train to basic or advanced obedience standards. They are a long-coated breed, with a dense inner coat that provides them with adequate warmth in the outdoors. Golden Retriever is the 3th most popular family dog breed in the United States and the 5th most popular in Brazil and Australia.

4. BEAGLE

Beagle is a breed of small hound and appear similar to the much larger foxhound. The beagle is the primary breed used as detection dogs for prohibited agricultural imports and foodstuffs in quarantine around the world. The beagle has an ability of great sense of smell and superior tracking instincts. It is a popular pet due to its size, good temper, intelligence and a lack of inherited health problems.

3. POODLE

Poodle is a formal dog breed and ranked second most intelligent dog breed. It comes in three varieties: Standard Poodle, Miniature Poodle, and Toy Poodle. the poodle is skillful in many dog sports and activities, including agility, obedience, tracking, herding, circus performance, and assistance dogs. They are recorded as the seventh most popular dog breed in the United States.

2. GERMAN SHEPHERD

German Shepherd is a medium to large-sized breed of working dog that originated in Germany. German Shepherds around the world are often the preferred breed for many types of work, including disability assistance, search-and-rescue, police and military roles and acting. German Shepherds were bred specifically for their intelligence. The German Shepherd is the second-most registered breed by the American Kennel Club.

1. LABRADOR RETRIEVER

Labrador Retriever is a medium-large breed of retriever-gun dog. The Labrador breed in Britain dates back to at least the 1830s, when it was first introduced from ships trading between the Labrador region of Canada and Poole in Dorsetshire. The Labrador is the most popular breed of dog in many nations. Additionally, they are prized as sporting and hunting dogs. Originally used in Newfoundland, as fishing dogs, they would help bring in the fishing nets and retrieve fish that had gotten away.