Behavior Identification?

The white dog is definitely dominant. You can tell by the curl of its tail and the messages from it's snarls. You can also tell by the way the black dog tends to cower when its advantage has been lost, obviously directing the white dog towards believing it has dominance over him. Another clue is the way the white dog stands over his prey. He is confident and completely willing for the other dog to try and take it from him, probably knowing the other dog will eventually give in to his dominating actions.

The husky is dominant. He attacked because the lab went near its toy when the husky's back was turned.

The white husky practically whipped around as the black lab approached the grouse which is a bird, it might have been a toy or an actual grouse. You can see the white husky show a great amount of dominace from the snarling and the jaws opening very wide. The husky kept mounting the black lab in attempt to pin it and make it surrender. You can tell by the tail and stance behavior as well, the white husky had his tail up and he stood tall while the black lab had his tail high as well he had lowered himself a bit and went under the white husky's head. The black lab had made the mistake of trying to go for the grouse each time after he was attacked. You can also see their tails wagging near each other, a sign that they are going to attack and the white husky repeatedly kept snapping or biting not hard though at the neck area of the black lab.

Did I get it right? XD