August 25, 2016 10:37 AM EDT

There are endless reasons why dogs are considered man’s best friend. The tail-wagging, four-legged friends fetch the mail, keep the bed warm, greet you at the door and provide unconditional love and loyalty. And they’re living proof that not all heroes are human. In honor of National Dog Day—celebrated every year on Aug. 26–here are 10 canines to celebrate for their bravery, dedication and devotion.

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