True friendship has no limits. Much like love, it is a mutual feeling based upon trust, respect and support.
These traits are not unique to the human species: sometimes animals surprise us by demonstrating very human-like behavior, and sometimes they can teach us a couple of things as well.
This Black Schnauzer is an ordinary dog: she likes long walks, jumping, barking, and occasionally gnawing on chair legs. One day, however, the owners realized that she had been mysteriously escaping the house at the same time every day. There was no explanation for this routine, so they decided to follow the little runaway with a camera in hand. Imagine their surprise when this was what they discovered!
Once again, animals prove that their friendship is just as true as human.