1: Discover the world's smartest dog breeds, from the Border Collie to the Poodle. Find out which furry friend is top of the class.

2: Border Collies are known for their intelligence and trainability. They excel in obedience training and agility competitions.

3: Poodles are not just fancy show dogs - they are also incredibly smart. These dogs excel in obedience and are quick learners.

4: German Shepherds are known for their intelligence and loyalty. They are often used as working dogs in police and military roles.

5: Golden Retrievers are not only friendly and loyal but also incredibly smart. They excel in obedience training and are quick learners.

6: Doberman Pinschers are known for their intelligence and loyalty. They are highly trainable and excel in obedience and protection training.

7: Shetland Sheepdogs are small but mighty in intelligence. They excel in obedience training and agility competitions.

8: Labrador Retrievers are not just friendly and loyal - they are also incredibly smart. These dogs excel in obedience and working roles.

9: Australian Shepherds are known for their intelligence and trainability. They excel in obedience and agility competitions.