I don't know what the person below is talking about. I don't see dominance at all. I see a Husky who is relaxed and having fun and gets aroused (i.e., excited) when the black dog starts picking on the black and white dog and joins. in. At this point, it would have been great to see a human intervene to break up the two on one dynamic as these type of bullying or excitable incidents can quickly get out of control, but these are not bad or "dominant" dogs, just aroused dogs. Based on your shepherd's body language throughout the video, I would probably avoid dog parks or go when less busy. He doesn't really like it all that much. If you watch his body language he often has his tail down, looks away or disengages from another dog and will come back to you for reassurance. Both dogs seem to like one another. Both seem like awesome dogs.