Dogs have a unique set of cognitive and intellectual abilities, They are said to have advanced recollection skills and can read and react appropriately to human body language such as gesturing and pointing. They can also understand human voice commands. 
While there is no clear-cut way to rank canine intelligence and intellect, certain breeds exhibit quite exceptional behaviors associated with intelligence and some breeds are said to be smarter than others. 
Poodles, Retrievers, Labradors, and shepherds rank among the most intelligent dogs and can learn as many as 250 words, signs, and signals. 
Below are the 10 smartest dog breeds in the world.
These famous herders have quite exceptional abilities that rank them high on the list of smartest dogs. The border collie is often regarded as the smartest of all dogs in the canine world. Originally, these smarties were bred as herding dogs.  Collies can perform just about any task you assign them. They are known as some of the most agile, highly energetic, very athletic, extremely driven, durable, and intelligent dogs. One interesting fact about the Border Collies is that they are always down to learn something new. Most can learn a new command in under five repetitions and follow it at least 95% of the time.