These dogs are very intelligent and are actually in the ten most intelligent dog breeds because of how fast and eager they are to learn which makes anyone just want to help them along. (second-opinion-doc.com)
The German Shepherd is a gorgeous and intelligent dog breed with hardcore fans around the world! (geekwrapped.com)
This is a very intelligent dog breed that has a working drive which means that it requires plenty of exercise in order to be healthy physically and psychologically. (caninejournal.com)