10 Famous Medium Sized Dog Breeds

1. Border Collie:
If you have even searched for smartest dog breeds, the Border Collie is a name you’ve heard of. If you haven’t then got an idea here. Most of their reputation comprises of their intelligence level and smartness. In one word they are a genius but needs a proper training to cultivate out the natural intelligence. They will wait for work all the time. But you should get them regular exercise.