When you adopt a dog from a shelter, you might not know much about where it came from. The shelter may be able to tell you about its personality and temperament, but who knows how many other puppies were in its litter or how many homes it lived in before arriving at yours? That’s what makes these stories so special – against ridiculous odds, these dogs who once knew each other were somehow reunited. And, thankfully, their owners were able to capture the moment on camera.